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StarTales was Lowell's daily astronomy fact feature that ran from from 1999 to 2009. Select a StarTale to display from the drop-down list below. By default, this list shows a full archive of StarTales. Enter a keyword in the search field at right to narrow down the list to StarTales containing that word in their title.

08/01/2009 -- StarTales by Lowell Observatory07/31/2009 -- Mariner 6 makes Mars flyby, 40 years ago today 07/30/2009 -- The International Space Station above the Caspian Sea 07/29/2009 -- A massive spot observed on Jupiter 07/28/2009 -- The Perseid Meteor shower, a mid-August celestial feast 07/27/2009 -- Delta Aquarid Meteor shower peaks 07/26/2009 -- The Running Man Nebula & the Orion Nebula 07/25/2009 -- More progress for Lowell Observatory on the Discovery Channe07/24/2009 -- Venus Express generates new temperature map of Venus 07/23/2009 -- Chandra X-ray Observatory, an anniversary plus Stephan's Qui07/22/2009 -- Total solar eclipse 07/21/2009 -- Viking 1 lands on Red Planet in Chryse Planitia region, 197607/20/2009 -- A date with destiny, 40 years ago, manned moon landing 07/19/2009 -- Edward Pickering's birthday 07/18/2009 -- LRO, LROC, & the moon's Mare Nubium region 07/17/2009 -- M63 from the Sonoran Desert Monument 07/16/2009 -- Apollo 11 launched, 1969 07/15/2009 -- Fifteen years ago SL-9 starts crashing into Jupiter 07/14/2009 -- Mariner 4 flyby of Mars, 44 years ago 07/13/2009 -- M17 shown by the NTT 07/12/2009 -- A Herschel image of M51 07/11/2009 -- ASTER, TERRA and a new Earth elevation map 07/10/2009 -- Giotto makes close flyby of a comet 07/09/2009 -- Voyager 2 flys by Jupiter 30 years ago 07/08/2009 -- The Ulysses Mission, an 18-year run in the sun 07/07/2009 -- Celebrating the Ulysses Mission 07/06/2009 -- Growing interest in the moon 07/05/2009 -- Spitzer probes NGC 5746 07/04/2009 -- A Deep Impact rendezvous four years ago 07/03/2009 -- LRO and LCROSS 07/02/2009 -- A trio of exoplanets discovered in 2008 07/01/2009 -- Cassini arrives at Saturn, 2004 06/30/2009 -- Tunguska anniversary 06/29/2009 -- George E. Hale's birthdate 06/28/2009 -- EBEX part two 06/27/2009 -- EBEX part one 06/26/2009 -- Messier born 1730 06/25/2009 -- Gemini North dedicated 10 years ago 06/24/2009 -- The Murchison Meteorite & time in interstellar space 06/23/2009 -- James Christy, USNO, discovers Charon 1978 06/22/2009 -- Royal Observatory founded, 1675 06/21/2009 -- Pandora's shadow 06/20/2009 -- Probing the Arches Cluster with the VLT 06/19/2009 -- QuikSCAT launched 1999 06/18/2009 -- Pioneer 10 leaves Solar System 06/17/2009 -- Verkamp Meteorite installed in Lowell Observatory's Visitor 06/16/2009 -- Valentina Tereshkova, first woman in space, 1963 06/15/2009 -- BESS explores the early Universe 06/14/2009 -- Vega 2 touches down in Aphrodite region on Venus, 1985 06/13/2009 -- NGC 4565, the Needle Galaxy in Coma Berenices 06/12/2009 -- Opportunity's roving results on Mars 06/11/2009 -- GLAST launched one year ago today 06/10/2009 -- A tiny star in the NIF lab 06/09/2009 -- Birthdate of Johann Galle, 1812 06/08/2009 -- Cassini's birthdate, 1625 06/07/2009 -- NASA & EUVE 06/06/2009 -- Herschel Observatory and Planck Surveyor launched 06/05/2009 -- Hale Telescope dedicated during this week, 1948 06/04/2009 -- A final spacewalk to fix HST 06/03/2009 -- HST's STIS gets a new power supply 06/02/2009 -- New gyroscopes for HST 06/01/2009 -- First HST spacewalk and a new Wide Field Planetary Camera 05/31/2009 -- Final HST repair mission launched with Atlantis 05/30/2009 -- Hubble's Wide Field Planetary Camera 2 & K 4-55 05/29/2009 -- General theory of relativity confirmed, 1919 05/28/2009 -- Spirit gets stuck in sand 05/27/2009 -- Phobos, Deimos named by Henry Madan 05/26/2009 -- Venetia Phair nee Burney & planet Pluto 05/25/2009 -- JFK makes historic speech, 1961 05/24/2009 -- Phoenix lands on Mars one year ago 05/23/2009 -- An analemma 05/22/2009 -- NGC 4088 and Supernova 2009dd 05/21/2009 -- Fermi Gamma-ray Space Telescope launched a year ago 05/20/2009 -- Pioneer Venus 1 launched, 1978 05/19/2009 -- Messenger, ASU, and smooth Mercury plains 05/18/2009 -- Messenger discovers Rembrandt 05/17/2009 -- Lockyer born, 1836 05/16/2009 -- Alnilam, the center of Orion's Belt 05/15/2009 -- Nicolas de Lacaille born, 1713 05/14/2009 -- Skylab launched, 1973 05/13/2009 -- Mars Odyssey, THEMIS, and north pole sand dunes 05/12/2009 -- UGC 4904 and a bright supernova 05/11/2009 -- The fascinating region, NGC 1333 05/10/2009 -- GRB 090423, the most distant object? 05/09/2009 -- Hayabusa, formerly MUSES-C & Itokawa 05/08/2009 -- Lowell astronomer detects water in atmosphere of HD 209458b 05/07/2009 -- CFHT gets a stamp 05/06/2009 -- Peak of annual Eta Aquarids 05/05/2009 -- Alan Shepard, first American in space, 1961 05/04/2009 -- Magellan deployed, 1989 05/03/2009 -- Hettick space art at Lowell through May 05/02/2009 -- National Astronomy Day at Lowell Observatory 05/01/2009 -- Kuiper discovers Nereid 60 years ago 04/30/2009 -- The Virgo Cluster and Burrell Schmidt Telescope 04/29/2009 -- M87 and HST-1 04/28/2009 -- Eugene M. Shoemaker birthdate, 1928 04/27/2009 -- Mercury transit & Dunn Solar Telescope 04/26/2009 -- Kepler pops its cover 04/25/2009 -- HST celebrates 19 years in space 04/24/2009 -- Planck spacecraft and its instruments 04/23/2009 -- ESA's Planck satellite 04/22/2009 -- B1509, a young powerful pulsar 04/21/2009 -- M101 in Ursa Major 04/20/2009 -- Apollo 16 lunar landing, 1972 04/19/2009 -- An upcoming moon & Venus conjunction 04/18/2009 -- HiRISE and Oudemans Crater region 04/17/2009 -- Belize coast from Landsat 7 04/16/2009 -- Apollo 16 launched 37 years ago 04/15/2009 -- La Silla Observatory's 40th anniversary 04/14/2009 -- Huygens has another birthday 04/13/2009 -- NGC 6240 04/12/2009 -- Titan's surface has slipped 04/11/2009 -- Comet 1P/Halley makes close approach to Earth, 1986 04/10/2009 -- GOCE maps Earth's gravity field 04/09/2009 -- HST & Saturn 04/08/2009 -- Lowell Observatory's DCT reaches skyward with dome construct04/07/2009 -- NASA's Gamma Ray Observatory deployed, 1991 04/06/2009 -- The sun and Cycle 24 04/05/2009 -- Solar System explorer Pioneer 11 launched, 1973 04/04/2009 -- Apollo 6 blasts off, 1968 04/03/2009 -- Lowell Observatory's DCT mirror coating chamber 04/02/2009 -- First photo of sun, 1845 04/01/2009 -- ESO, VLT and Arp 261 03/31/2009 -- Ill-fated Beagle 2's mission objectives 03/30/2009 -- HiRISE and Search for Beagle 2 03/29/2009 -- Mariner 10's rendezvous with Mercury, 1974 03/28/2009 -- NOAO astronomers discover two huge black holes 03/27/2009 -- Spirit make a detour 03/26/2009 -- Sea Launch 03/25/2009 -- Christiaan Huygens discovers Titan, 1655 03/24/2009 -- TrES-2, Lowell Observatory, & the Kepler field 03/23/2009 -- The Kepler spacecraft & modus operandi 03/22/2009 -- Kepler launch, a major milestone in hunt for Earth-sized pla03/21/2009 -- Ranger 9 launched, 1965 03/20/2009 -- Vernal Equinox 03/19/2009 -- GRB 080916C and the Fermi Telescope 03/18/2009 -- First spacewalk, 1965 03/17/2009 -- Asteroid 2008 TC3 over Sudan 03/16/2009 -- A GRB caught in the act by SWIFT 03/15/2009 -- Three galaxies in the Southern Fish 03/14/2009 -- Australia's deadly wildfires from space 03/13/2009 -- Percival Lowell born 154 years ago today 03/12/2009 -- The Horsehead Nebula in Orion 03/11/2009 -- Astronomers discover faint rings around planet Uranus, 1977 03/10/2009 -- Io and Lowell Observatory research 03/09/2009 -- Sunspots in groups and pairs 03/08/2009 -- Daylight Savings Time for most of U.S. begins today 03/07/2009 -- NASA's Apollo 9 launched 40 years ago this week 03/06/2009 -- Vega 1 makes flyby of Comet Halley, 1986 03/05/2009 -- NASA's Voyager 1 makes closest Jupiter approach, 1979 03/04/2009 -- Jupiter's faint rings of dust 03/03/2009 -- The Bejar Bolide 03/02/2009 -- A Collision in space, Cosmos 2251 and Iridium 33 03/01/2009 -- George Abell and Abell 2151 02/28/2009 -- NGC 4921, a Coma Cluster member 02/27/2009 -- ESA Cluster Mission 02/26/2009 -- ESA missions extended 02/25/2009 -- Supernova discovered 22 years ago 02/24/2009 -- Burnell and colleagues discover first pulsar, 1968 02/23/2009 -- C/2007 N3 (Lulin) 02/22/2009 -- Aurora borealis over Big Bear Lake, Alaska 02/21/2009 -- Spicules on the sun by SST 02/20/2009 -- COROT-Exo-7b discovered by transit method 02/19/2009 -- Copernicus and the Copernicus Satellite 02/18/2009 -- Clyde Tombaugh discovers Pluto from Lowell Observatory, 193002/17/2009 -- THEMIS launched, 2007 02/16/2009 -- Pioneer 10 passes through asteroid belt 02/15/2009 -- A birthday for Galileo & IYA 2009 02/14/2009 -- Lowell Observatory and the Heart Nebula 02/13/2009 -- Johan Dreyer's birthday 02/12/2009 -- NEAR-Shoemaker alights on Asteroid 433 Eros, 2001 02/11/2009 -- Burr Castle, Ireland and M51 02/10/2009 -- Galileo spacecraft makes pass at Venus, 1990 02/09/2009 -- A penumbral eclipse 02/08/2009 -- Skylab ends 84-day mission, 1974 02/07/2009 -- Atmospheric studies from the night side of Venus 02/06/2009 -- NGC 2818 in the Compass 02/05/2009 -- Goacheng since 1276 02/04/2009 -- Luna 9 & lunar soft landing, 1966 02/03/2009 -- A new super Neptune exoplanet in Cygnus 02/02/2009 -- First quarter moon tonight 02/01/2009 -- VLT and a configuration for ultra high angular resolution 01/31/2009 -- NASA and Apollo 14 01/30/2009 -- XMM-Newton & SGR 1627-41 01/29/2009 -- PHOBOS enters Mars orbit, 1989 01/28/2009 -- IRAS, part two 01/27/2009 -- IRAS, part one 01/26/2009 -- Asteroid Geographos 01/25/2009 -- Clementine launched, 1994 01/24/2009 -- Voyager 2 and a close approach to the seventh planet, 1977 01/23/2009 -- Solar storms zap three communications satellites 01/22/2009 -- An asteroid or comet impact site in northern Chad 01/21/2009 -- Panoramic Milky Way image with 200 new massive stars 01/20/2009 -- Astronaut Buzz Aldrin born, 1930 01/19/2009 -- New Horizons celebrates launch anniversary, 2006 01/18/2009 -- Gemini South dedicated, 2002 01/17/2009 -- Deep Space 1 and Comet Borrelly 01/16/2009 -- Jupiter's moon Ganymede passes behind its parent planet 01/15/2009 -- IYA 2009 opens in Paris 01/14/2009 -- Huygens alights on Titan four years ago 01/13/2009 -- Ganymede discovered, 1610 01/12/2009 -- Wild 2 from Stardust 01/11/2009 -- Herschel discovers first two Uranian moons, 1787 01/10/2009 -- Venera 6 launches 40 years ago 01/09/2009 -- Getting the GOODS on Galaxies 01/08/2009 -- M11, the Wild Duck Cluster 01/07/2009 -- Discovery of Io, Europa, & Callisto in 1610 01/06/2009 -- Tectonic activity on Enceladus 01/05/2009 -- Quadrantids & Quadrantic MAC mission 01/04/2009 -- Aurora borealis and Quadrantids 01/03/2009 -- Spirit lands on Mars, 2004 01/02/2009 -- Luna 1 anniversary 01/01/2009 -- Lowell Observatory's astronomical regulator 12/31/2008 -- Leap second added by USNO 12/30/2008 -- Cassini passes Jupiter 12/29/2008 -- MRO completes primary mission 12/28/2008 -- Eddington's birthday 12/27/2008 -- Kepler born, 1571 12/26/2008 -- Students discover OGLE2-TR-L9b 12/25/2008 -- Sir Isaac Newton born, 1642 12/24/2008 -- M17, the omega Nebula 12/23/2008 -- Cassini discovers Rhea, 1672 12/22/2008 -- Apollo 8 launched, 1968 12/21/2008 -- Winter Solstice today 12/20/2008 -- NGC 5139, the Omega Centauri cluster 12/19/2008 -- Terra & ASTER capture reigon in Tajikistan 12/18/2008 -- Lowell Observatory & Comet Machholz 1, part two 12/17/2008 -- Lowell Observatory & Comet Machholz 1, part one 12/16/2008 -- Mariner 2 makes close Venus flyby, 1962 12/15/2008 -- Venera 7 and first soft Venus landing 12/14/2008 -- Tycho Brahe born 1546 12/13/2008 -- Geminid meteors peak 12/12/2008 -- IBEX & million-mile-per-hour solar wind 12/11/2008 -- AE Aurigae in Auriga, the Charioteer 12/10/2008 -- NGC 1977, the Running Man Nebula 12/09/2008 -- LOIRP gives lunar images new life 12/08/2008 -- M84 & bubbles of hot gas 12/07/2008 -- Galileo arrives at Jupiter, 1995 12/06/2008 -- APEX reveals RCW120 12/05/2008 -- Comet IRAS-Araki-Alcock 12/04/2008 -- Infrared astronomy & IRAS 12/03/2008 -- NASA's Pioneer 10 and 11 spacecraft flyby Jupiter 12/02/2008 -- Soviet Mars 3 lander & Mars soft landing 12/01/2008 -- Jupiter, Venus, and the moon converge 11/30/2008 -- First image of a new solar system 11/29/2008 -- Astereoseismology & starquakes 11/28/2008 -- Chandryaan-1 lowers its lunar orbit 11/27/2008 -- ATA tracks New Horizons, now a billion miles away 11/26/2008 -- Comet Biela, first meteor trail image, 1885 11/25/2008 -- Rhea, Saturn, & edge on rings 11/24/2008 -- Phoenix Mars Lander delivers on Red Planet 11/23/2008 -- Phoenix Lander & results from Mars 11/22/2008 -- Mercury and its Rudaki Crater region 11/21/2008 -- MESSENGER shows new parts of Mercury 11/20/2008 -- Hubble's birthday 11/19/2008 -- Arp 147, a galaxy pass through 11/18/2008 -- NGC 206 in Andromeda 11/17/2008 -- M24 in Andromeda 11/16/2008 -- Leonids peak 11/15/2008 -- Sir William Herschel's birthday, 1738 11/14/2008 -- Two asteroid belts orbiting Epsilon Eridani 11/13/2008 -- A Mars anniversary & A New Perspective on Mars 11/12/2008 -- Voyager 1 and a Saturn flyby, 1980 11/11/2008 -- TRACE and vast coronal loops 11/10/2008 -- Hubble's WFPC-2 and HH47 11/09/2008 -- Chandraayan-1 launched 11/08/2008 -- Edmond Halley's birthday 11/07/2008 -- A New Perspective on Mars 11/06/2008 -- CTA 1 from the Fermi Gamma-ray Space Telescope 11/05/2008 -- Lowell's Carl Lampland & the Crab Nebula 11/04/2008 -- Interstellar Boundary Explorer deployed 11/03/2008 -- Gum 29 & Westerlund 2 11/02/2008 -- Shapley's birthday & a Harvard Arizona Meteor Expedition 11/01/2008 -- Kowal discovers Comet Chiron in 1977 10/31/2008 -- Saturn's Columbo Gap 10/30/2008 -- NGC 6946 & SN 1980K 10/29/2008 -- Surveying nearby galaxies with SCUBA-2 10/28/2008 -- JCMT, Scuba-2, and HARP 10/27/2008 -- Saturn's south pole in infrared colors 10/26/2008 -- Integral Observatory spots faint gamma-ray burst 10/25/2008 -- Birthdate of Henry Norris Russell, 1877 10/24/2008 -- Bolides and Asteroid 2008 TC3 10/23/2008 -- Iapetus discovered, 1671 10/22/2008 -- First record of total solar eclipse, 2136 B.C. 10/21/2008 -- Orionids peak 10/20/2008 -- A dramatic collision of galaxies 10/19/2008 -- Chain of craters on Ganymede 10/18/2008 -- Dickinson Crater in Venusian Atalanta Region 10/17/2008 -- A burst from GRB 080913, 12.8 billion light-years away 10/16/2008 -- China completes first spacewalk with Shenzhou 7 10/15/2008 -- ShenZhou 5 launched, 2003 10/14/2008 -- NGC 3077 and ANGST 10/13/2008 -- Megabreccia and Holden Crater on Mars 10/12/2008 -- Astronomers record 40 flashes from magnetar 10/11/2008 -- Opportunity gets tough new assignment: Endeavour Crater 10/10/2008 -- Lassell discovers Triton, 1846 10/09/2008 -- The Spider in Mercury's Caloris Basin 10/08/2008 -- Mercury's color-enhanced Caloris Basin 10/07/2008 -- Luna 3 takes first far side of moon images, 1959 10/06/2008 -- Cometary Globule CG4 10/05/2008 -- Hubble discovers Cepheid variables, 1923 10/04/2008 -- GRB 080319B, the brightest yet seen 10/03/2008 -- LORRI, New Horizons, and a team award 10/02/2008 -- Galaxies in a rare alignment 10/01/2008 -- Phoenix catches Mars dust devils 09/30/2008 -- Hurricane Ike from space 09/29/2008 -- Spider Crater, Australia 09/28/2008 -- September Perseids 09/27/2008 -- Aristarchus Crater on the moon 09/26/2008 -- Europa's Pwyll Crater 09/25/2008 -- The Issac Newton Telescopes 09/24/2008 -- Rossi X-ray Timing Explorer 09/23/2008 -- Neptune discovered, 1846 09/22/2008 -- Autumnal equinox 09/21/2008 -- Anthe and Methone's arcs 09/20/2008 -- Bond discovers Hyperion, 1848 09/19/2008 -- Opportunity captures Dazzling Dunes 09/18/2008 -- Opportunity emerges from Victoria Crater 09/17/2008 -- M83 by the Max Planck-ESO telescope 09/16/2008 -- ISS snaps first Earth observation image 09/15/2008 -- Full moon, Harvest Moon, & astronomy research 09/14/2008 -- Zond 5 launched 40 years ago 09/13/2008 -- Soviet's Luna 2 impacts moon, 1959 09/12/2008 -- Lowell's Steele Visitors Center welcomes 1 million 09/11/2008 -- ICE flies by Comet Giacobini-Zinner, 1978 09/10/2008 -- NGC 1275 & a filamentary structure 09/09/2008 -- Amalthea & a pile of rubble 09/08/2008 -- Damascus Sulcus on Enceladus 09/07/2008 -- Enceladus, tiger stripes, new light 09/06/2008 -- AFM on Phoenix Mars Lander 09/05/2008 -- Rosetta's OSIRIS helps guide towards (2867) Steins 09/04/2008 -- Phoenix Mars Lander detects water at Snow White 09/03/2008 -- Viking 2 lands on Mars, 1976 09/02/2008 -- NGC 1818, a young globular star cluster 09/01/2008 -- Hanny's Voorheep 08/31/2008 -- A Titan lake, Ontario Lacus 08/30/2008 -- A possible asteroid belt around HD 69830 08/29/2008 -- Enceladus and a 40,000 mile per hour flyby 08/28/2008 -- Enceladus, discovered today in 1789 08/27/2008 -- HST's 100,000th Earth orbit 08/26/2008 -- NanoSail D poised to sail through space 08/25/2008 -- NGC 7662, the Blue Snowball Nebula 08/24/2008 -- Voyager 2 and Saturn, Neptune flybys 08/23/2008 -- Spitzer celebrates five years in Earth-trailing orbit 08/22/2008 -- SOFIA slated for stratosphere 08/21/2008 -- Eclipses by Deimos and Phobos 08/20/2008 -- XXM-Newton and nova V598 Puppis 08/19/2008 -- MRO, CRISM and the Jezero Crater on Mars 08/18/2008 -- A tale of Jupiter's red spots 08/17/2008 -- Cygnus Loop 08/16/2008 -- MRO, a first Phoenix Lander image 08/15/2008 -- Rhea, in a class by itself 08/14/2008 -- In 1877, Hall discovers Deimos and Phobos 08/13/2008 -- Eta Carina, a luminous star 08/12/2008 -- Peony Nebula Star 08/11/2008 -- Perseid meteors peak 08/10/2008 -- Optical technology & Lowell Observatory's DCT mirror 08/09/2008 -- Jupiter-like exoplanets 08/08/2008 -- Spitzer views NGC 7331 08/07/2008 -- Venus in phases 08/06/2008 -- Clearwater Lakes 08/05/2008 -- Aurora Australis and Aurora Borealis 08/04/2008 -- Astronomers discern water in exoplanet atmospheres 08/03/2008 -- M57, looking down a barrel 08/02/2008 -- Finding the ISS in the night sky 08/01/2008 -- Total eclipse of the sun today for some observers 07/31/2008 -- Jupiter, a fascinating planetary system to view 07/30/2008 -- Alberio, a colorful double star in Cygnus 07/29/2008 -- This year marks NASA's 50th anniversary 07/28/2008 -- Cassini to flyby Pan and Prometheus 07/27/2008 -- Spitzer reveals a very active star forming region 07/26/2008 -- Delta Aquarid meteors peak over next few nights 07/25/2008 -- Gemini South Telescope shows galaxies interacting 07/24/2008 -- Mars missions reveal possible dew and drizzle 07/23/2008 -- Chandra X-ray Observatory deployed, 1999 07/22/2008 -- Last of Comet SL-9 fragments impact Jupiter, 1994 07/21/2008 -- NASA's Viking 1 lands on Mars, 1976 07/20/2008 -- Apollo 11 astronauts first to walk on moon, 1969 07/19/2008 -- Phoenix Mars Lander and Show White 5 07/18/2008 -- First photo of a star 07/17/2008 -- Soyuz and Apollo spacecraft rendezvous 07/16/2008 -- SL-9 crashes into Jupiter 07/15/2008 -- Astronomers calculate new date for Caesar's invasion of Brit07/14/2008 -- NASA's Mariner 4 and first Mars flyby 07/13/2008 -- XMM Newton and x-rays from a binary pulsar 07/12/2008 -- NGC 7027 in Cygnus 07/11/2008 -- Shergotite meteorites from Mars 07/10/2008 -- voyager 1 captures Jupiter's storms 07/09/2008 -- Voyager 2 hurtles past Jupiter 07/08/2008 -- M104, the Sombrero Galaxy and a possible black hole 07/07/2008 -- Enceladus, size and features 07/06/2008 -- Shadow from total solar eclipse 07/05/2008 -- NASA's Deep Impact turns three 07/04/2008 -- Fireworks from Cas A 07/03/2008 -- GLAST's instruments 07/02/2008 -- GLAST's launch 07/01/2008 -- ESO team detects three super Earth exoplanets 06/30/2008 -- One hundred years after Tunguska 06/29/2008 -- Four year anniversary of Cassini at Saturn orbit 06/28/2008 -- Coma Cluster of galaxies through HST's ACS 06/27/2008 -- M13 or NGC 6205 in Hercules 06/26/2008 -- Charles Messier born 1730 06/25/2008 -- Phoenix Mars Lander marks one month of operations 06/24/2008 -- Magnetar SGR 1900+14 through Spitzer's eye 06/23/2008 -- New Horizons flies out past Saturn's orbit, 1/4 of way to Pl06/22/2008 -- USNO astronomer Christy discovers Charon 30 years ago 06/21/2008 -- Astronomical twilight 06/20/2008 -- Summer solstice 06/19/2008 -- Discovery Space Shuttle mission STS-124 and Kibo 06/18/2008 -- Sally Ride, first American woman in space, 1983 06/17/2008 -- Astronomers study Tycho Supernova light 06/16/2008 -- Cosmonaut Valentina Tereshkova, first woman in space, 1963 06/15/2008 -- COROT spots two new exoplanets and a 3rd unkown object 06/14/2008 -- Discovery news film crew tours Lowell's Discovery Channel Te06/13/2008 -- NASA's Pioneer spacecraft passes beyond farthest planet, 19806/12/2008 -- ESO's Very Large Telescope Interferometer looks at WOH G64 06/11/2008 -- Lowell Observatory's 114th birthday 06/10/2008 -- Phoenix Mars Lander explores its environs 06/09/2008 -- Phoenix Mars Lander photographed under canopy during landing06/08/2008 -- Cassini's birthday 06/07/2008 -- More light obscured by dust in Universe 06/06/2008 -- NGC 157 and the 1.8-meter Perkins Telescope 06/05/2008 -- BU astronomers discover two new extrasolar planets 06/04/2008 -- New wide field camera on Burrell Schmidt telescope at Kitt P06/03/2008 -- Hale Telescope dedicated, 1948 06/02/2008 -- Astronaut White and 1st American space walk, 1965 06/01/2008 -- MRO reveals colder Mars 05/31/2008 -- USNO's 40-inch Ritchey-Chretien captures dramatic moonrise o05/30/2008 -- A Ritchey-Chretien telescope and the USNO-Flagstaff Station 05/29/2008 -- George Ritchey and the Ritchey-Chretien telescope, part one 05/28/2008 -- NASA's Cassini to flyby Titan, a second close pass this mont05/27/2008 -- HST servicing mission delayed for a few weeks 05/26/2008 -- A powerful lightning storm on Saturn 05/25/2008 -- Phoenix Mars lander set for touchdown today 05/24/2008 -- Jupiter's 63 moons 05/23/2008 -- The Ant Nebula, Mz3 05/22/2008 -- NSF-funded survey turns up new type of white dwarf star 05/21/2008 -- NASA's Pioneer Venus 1 hits 30 years 05/20/2008 -- The Very Large Telescope and UVES 05/19/2008 -- Zodiacal light from Cerro Paranal 05/18/2008 -- Comet C/2007 W1 (Boattini) 05/17/2008 -- Sir Joseph Lockyer's birthday 05/16/2008 -- Asteroid Mathilde more like a rubble pile 05/15/2008 -- Birthdate of Nicolas de Lacaille 05/14/2008 -- Skylab launched in 1973 05/13/2008 -- Eta Carinae and the next 100,000 years 05/12/2008 -- BU-led team uses Perkins Telescope in black hole discovery 05/11/2008 -- Antares, M4, and NGC 6144 05/10/2008 -- Omega Centauri by Spitzer and Cerro Tololo-based 4-meter 05/09/2008 -- M83, the Southern Pinwheel Galaxy 05/08/2008 -- Flagstaff celebrates 50th anniversary of 1st dark skies ordi05/07/2008 -- Gemini North on Mauna Kea 05/06/2008 -- M35 and NGC 2158 05/05/2008 -- Eta Aquarids peak at new moon 05/04/2008 -- First American in space, 1961 05/03/2008 -- International Space Station captured in lunar transit 05/02/2008 -- A light echo of an x-ray flare from the Milky Way 05/01/2008 -- Kuiper discovers Nereid, 1949 04/30/2008 -- Cassini destined for 60 more Saturn orbits, two more years 04/29/2008 -- M65, an Sb-type spiral galaxy in Leo 04/28/2008 -- The WIYN Telescope and NOAO 04/27/2008 -- Kitt Peak National Observatory 04/26/2008 -- Scientists detect amino-like molecule in Sagittarius 04/25/2008 -- HST deployed on this date in 1990 04/24/2008 -- The Large Hadron Collider & ATLAS, part two 04/23/2008 -- The Large Hadron Collider & ATLAS, part one 04/22/2008 -- HST captures the Eagle Nebula, M16, part two 04/21/2008 -- HST image of M16, part one 04/20/2008 -- Cassini visits Mimas, Telesto, & Epimetheus 04/19/2008 -- A lunar halo 04/18/2008 -- Dione's vast canyons 04/17/2008 -- Lowell Observatory scientist detects carbon dioxide ice on A04/16/2008 -- Spiral galaxy M58 in Virgo 04/15/2008 -- Spiral galaxy M61, a.k.a. NGC 4303 04/14/2008 -- Christiaan Huygens has a birthday & Cassini-Huygens science 04/13/2008 -- Swift records a powerful gamma ray burst 04/12/2008 -- NASA celebrates Columbia launch anniversary, 1981 04/11/2008 -- Astronomer Barnabus Oriani 04/10/2008 -- Comet C/2007 B2 (Skiff) and LONEOS 04/09/2008 -- Titan's possible subterranean ocean 04/08/2008 -- THEMIS gathers evidence of salt deposits on Red Planet 04/07/2008 -- Compton Gamma Ray Observatory deployed, 1991 04/06/2008 -- Deimos from NASA's Viking spacecraft 04/05/2008 -- LONEOS completes productive 10-year asteroid search 04/04/2008 -- M42, the Orion Nebula from Arizona dark sky site 04/03/2008 -- Luna 10's anniversary of selonocentric orbit 04/02/2008 -- Comet Holmes off the California Nebula's coast 04/01/2008 -- Meteorite collision and 49-foot-wide crater in Peru 03/31/2008 -- Cassini studies stripe fractures on Enceladus 03/30/2008 -- Cassini zooms through icy jets on Enceladus 03/29/2008 -- NASA's Mariner 10 and first Mercury flyby, 1974 03/28/2008 -- Red Rectangle Nebula, HD 44179 03/27/2008 -- LBT milestone of first binocular light 03/26/2008 -- Rhea's faint rings 03/25/2008 -- Huygens discovers Titan, 1655 03/24/2008 -- Walter Baade born on this date, 1893 03/23/2008 -- Knots of gas in the Helix Nebula 03/22/2008 -- Big Bear Solar Observatory, part two 03/21/2008 -- Big Bear Solar Observatory, part one 03/20/2008 -- Vernal equinox 03/19/2008 -- NGC 1291's unusual features 03/18/2008 -- NGC 4569, a bright Virgo cluster spiral 03/17/2008 -- Vanguard 1 celebrates 50 years in space 03/16/2008 -- Goddard's first liquid-fueled rocket, 1926 03/15/2008 -- The Triangulum Galaxy, M33, from Swift 03/14/2008 -- Albert Einstein's birthday 03/13/2008 -- Percival Lowell born on this date in 1855 03/12/2008 -- Giotto spacecraft, part two 03/11/2008 -- Giotto spacecraft, part one 03/10/2008 -- Lowell Obs. astronomers and team discover rings of Uranus 03/09/2008 -- Plato observes from 13,000 feet on Antarctic ice 03/08/2008 -- Terby Crater on Mars shown by Mars Express 03/07/2008 -- Birthdate of English astronomer John Herschel 03/06/2008 -- Voyager 1 Jupiter flyby, 1979 03/05/2008 -- Geyser plume from Enceladus, part two 03/04/2008 -- Geyser plume from Enceladus, part one 03/03/2008 -- M77's recessional velocity measured in 1914 03/02/2008 -- tau Bootis flips its magnetic field 03/01/2008 -- Rho Oph, a star forming region 02/29/2008 -- Today is a leap year day 02/28/2008 -- NGC 1132, a giant elliptical galaxy 02/27/2008 -- Herschel Telescope's low weight 3.5-meter mirror 02/26/2008 -- Eistla Regio and Gula Mons on Venus 02/25/2008 -- The Southern Cross, a navigational landmark 02/24/2008 -- Three galaxies and the Southern Cross 02/23/2008 -- Supernova 1987A 02/22/2008 -- Solar Radiation and Climate Experiment (SORCE) 02/21/2008 -- Glenn, first American in Earth orbit, 1962 02/20/2008 -- Total lunar eclipse tonight 02/19/2008 -- Copernicus born, 1473 02/18/2008 -- Tombaugh discovers Pluto, 1930 & New Horizons on the way the02/17/2008 -- NGC 772 and the Great Wall 02/16/2008 -- Kuiper discovers Miranda, 1948 02/15/2008 -- Galileo's birthdate 02/14/2008 -- Syncom 1's 45th anniversary 02/13/2008 -- Seasonal climate change on Neptune 02/12/2008 -- Massive storms in Jupiter's atmosphere, part 2 02/11/2008 -- Massive storms in Jupiter's atmosphere, part 1 02/10/2008 -- Discovery of nitrogen pentoxide in Earth's atmosphere 02/09/2008 -- Messenger takes 1,200 images of Mercury 02/08/2008 -- Messenger nears Mercury 02/07/2008 -- First free-floating space walk, 1984 02/06/2008 -- Annular solar eclipse 02/05/2008 -- The Pipe Nebula 02/04/2008 -- Clyde Tombaugh's birthdate 02/03/2008 -- Luna 9's lunar soft landing, 1966 02/02/2008 -- A solar wind stream from a coronal hole 02/01/2008 -- Explorer One launched, 1958 01/31/2008 -- Meteor fragments fall in Poland, 1868 01/30/2008 -- M1, the Crab Nebula 01/29/2008 -- Lowell Observatory research programs on sun-like stars 01/28/2008 -- Birthdate of Johannes Hevelius 01/27/2008 -- Apollo One fire, 1967 01/26/2008 -- Star Clusters in Puppis, M46 and M47 01/25/2008 -- Opportunity's tracks near Victoria Crater, Martian day 1,16001/24/2008 -- Voyager 2 reveals Uranian system in 1986 01/23/2008 -- Voyager 2's 1986 rendezvous with Uranus 01/22/2008 -- M41 in Canis Major 01/21/2008 -- An unusual planetary nebula shown by HST 01/20/2008 -- MGS captures Martian sand dunes of Kaiser Crater 01/19/2008 -- Saturn's Northern Lights 01/18/2008 -- NASA Earth Observatory studies Tyndall Glacier 01/17/2008 -- Lightning confirmed above Venus 01/16/2008 -- NGC 2903, super star clusters, and star formation 01/15/2008 -- Huygens and the Descent Imager-Spectral Radiometer 01/14/2008 -- Huygens alights on Titan 01/13/2008 -- Galileo discovers Ganymede 01/12/2008 -- GOODS 850-5 forming 4,000 Suns per year 01/11/2008 -- Herschel discovers two Uranian satellites, 1787 01/10/2008 -- NACA test flight in the California desert, 1955 01/09/2008 -- Epoxi to arrive at Hartley 2 in 2010 01/08/2008 -- New clues for formation of Saturn's rings 01/07/2008 -- Unraveling the enigma of Saturn's rotation 01/06/2008 -- Surveyor 7's 40th launch anniversary 01/05/2008 -- Plasma Instrument detects termination shockwave 01/04/2008 -- Voyager 2 crosses termination shock 01/03/2008 -- Quadrantid Meteor shower 01/02/2008 -- LOFAR, first digital radio telescope sans moving parts 01/01/2008 -- Comet 8P Tuttle makes close approach to Earth 12/31/2007 -- V.M. Slipher studies diffuse glow in Pleiades, 1912 12/30/2007 -- A Cassini close flyby of Jupiter 12/29/2007 -- USNO-Flagstaff astronomers discover coldest, faintest star 12/28/2007 -- Sir Arthur Eddington's birthday 12/27/2007 -- An unusual streak of ionized gas from D100? 12/26/2007 -- HST image of M74 12/25/2007 -- Sir Isaac Newton's birthday 12/24/2007 -- James Webb Space Telescope milestone 12/23/2007 -- The Iris Nebula, NGC 7023 12/22/2007 -- Winter Solstice 12/21/2007 -- Apollo 8 launched, 1968 12/20/2007 -- Cassini set to make 40th rendezvous with Titan 12/19/2007 -- USNO-Flagstaff astronomers study ultracool dwarf star 12/18/2007 -- Mars, as close as it gets until 2016 12/17/2007 -- The magnificent Magellanic Clouds 12/16/2007 -- GALEX and NGC 300 12/15/2007 -- A Friend of Lowell captures M27 12/14/2007 -- Tycho Brahe's birthday 12/13/2007 -- Geminid Meteor Shower, 2007 12/12/2007 -- SDSS mapping night sky 12/11/2007 -- SDSS discovers ring of stars around Milky Way 12/10/2007 -- Meteorite Mihonseki 12/09/2007 -- Mariner 2's 45th anniversary for Venus flyby 12/08/2007 -- Galileo and Europa, a Thrace Region closeup 12/07/2007 -- Galileo and Jupiter, 1989 12/06/2007 -- NGC 7298 , the Helix Nebula 12/05/2007 -- Rosetta's CIVA and Mawrth Vallis on Mars 12/04/2007 -- Pioneer 11 flyby of Jupiter, 1974 & New Horizons 12/03/2007 -- Pioneer 10 flyby of Jupiter, 1973 & New Horizons 12/02/2007 -- Mars 3 lander and Mars Pathfinder 12/01/2007 -- M37 image with CFHT 11/30/2007 -- NGC 4565, the Needle Galaxy 11/29/2007 -- A fifth planet orbiting 55 Cancri 11/28/2007 -- LORRI on New Horizons and Ganymede 11/27/2007 -- Europa eyed by LORRI 11/26/2007 -- First photo of a meteor trail, 1885 11/25/2007 -- M45, the Pleiades in Taurus 11/24/2007 -- Today's full moon, the Beaver Moon 11/23/2007 -- 30th anniversary for Meteostat 1 11/22/2007 -- Galaxies of Arp 317 11/21/2007 -- A spectacular galaxy pair, Arp 18 11/20/2007 -- Edwin Hubble's birthday 11/19/2007 -- Comet 17P/Holmes 11/18/2007 -- Sunrise, a new solar telescope 11/17/2007 -- Jupiter's unusual magnetosphere 11/16/2007 -- Chandra image of an exploded star 11/15/2007 -- Sir William Herschel born 1738 11/14/2007 -- Mariner 9 delayed in starting Mars mission operations, 1971 11/13/2007 -- NASA's Mariner 9 orbits Mars, 1971 11/12/2007 -- Voyager 1 flyby of Saturn in 1980 11/11/2007 -- Galaxy I Zwicky 18 11/10/2007 -- The Black Eye or Evil Eye Galaxy 11/09/2007 -- Double Star 11/08/2007 -- Edmund Halley's birth date 11/07/2007 -- Cassini celebrates 10 years with special Saturn system image11/06/2007 -- Cassini's 10-year anniversary 11/05/2007 -- SOFIA's test flights, soaring towards first light 11/04/2007 -- Supernova 2005ap 11/03/2007 -- Shapley's Harvard Arizona Meteor Expedition 11/02/2007 -- Harlow Shapley's birthdate 11/01/2007 -- Intriguing features of Iapetus 10/31/2007 -- Henrich Louis d'Arrest, Neptune and comets 10/30/2007 -- MyCn18, the Hourglass Nebula 10/29/2007 -- Young stars, blue ring surround Hoag's Object 10/28/2007 -- LONEOS discovers Comet 2007 F1 10/27/2007 -- Tohil Mons, a peak on Io 10/26/2007 -- Cassini's 2004 close flyby of Titan 10/25/2007 -- Henry Norris Russell's birthdate 10/24/2007 -- Lassell discovers Umbriel and Ariel 10/23/2007 -- Cassini discovers Iapetus 10/22/2007 -- First historical record of solar eclipse 10/21/2007 -- Orionid meteor shower & Comet Halley 10/20/2007 -- What is a fogbow? 10/19/2007 -- Mariner 5's flyby of Venus 40 years ago 10/18/2007 -- 40th anniversary of Venera 4 10/17/2007 -- 50th anniversary of Sputnik 10/16/2007 -- Dawn's mission to Ceres 10/15/2007 -- Dawn spacecraft en route to study Vesta and Ceres 10/14/2007 -- Methane on Titan 10/13/2007 -- New Horizons' LORRI captures Valhalla on Callisto 10/12/2007 -- Himalayas of Iapetus 10/11/2007 -- Atmospheric effects on sunlight 10/10/2007 -- William Lassell discovers Triton in 1846 10/09/2007 -- M10, or NGC 6245, a bright star cluster in Ophiuchus 10/08/2007 -- Ejnar Hertzsprung's birthday 10/07/2007 -- Luna 3 takes first image of moon's far side 10/06/2007 -- Lowell Observatory's South African expeditions 10/05/2007 -- Edwin Hubble identifies Cepheid variable stars in M31 10/04/2007 -- Spirit identifies new igneous rock on Mars 10/03/2007 -- Opportunity's first foray in Victoria Crater 10/02/2007 -- Baptistina, new light on asteroids 10/01/2007 -- Wolf Creek Crater in Australia 09/30/2007 -- M20, a glowing star nursery 09/29/2007 -- Deep Impact is on to Comet Boethin 09/28/2007 -- Stardust gets a new mission 09/27/2007 -- AKARI observations in far infrared 09/26/2007 -- Mars rovers weather heavy dust storms 09/25/2007 -- Skylab 2 returns to Earth 09/24/2007 -- HiRISE images of pit craters on Mars 09/23/2007 -- A Trojan moon 09/22/2007 -- ASU and team announce Apollo Image Archive 09/21/2007 -- HAWK-1 on VLT sees nebula in Serpens 09/20/2007 -- Massive stars in Cat's Paw Nebula, NGC 6334 09/19/2007 -- William Cranch Bond discovers Hyperion 09/18/2007 -- Comet LINEAR sheds light on comet dynamics 09/17/2007 -- Lowell astronomers co-discover rings of Uranus 09/16/2007 -- Uranian rings captured using VLT 09/15/2007 -- Moon reaches apogee 09/14/2007 -- BU-Lowell Telescope and image of NGC 1569 09/13/2007 -- Luna 2 impacts moon, 1959 09/12/2007 -- Dean from Endeavor 09/11/2007 -- ICE and Comet Giacobini-Zinner 09/10/2007 -- LEO, a location for space debris 09/09/2007 -- E.E. Barnard discovers Amalthea 09/08/2007 -- Sagittarius dwarf galaxy obscured by Milky Way 09/07/2007 -- SOHO studies Sun since 1995 09/06/2007 -- NGC 7009, the Saturn Nebula 09/05/2007 -- Phoenix Mars Mission launch 09/04/2007 -- Viking 2 and panoramic Mars image 09/03/2007 -- Viking 2 lands on Mars, 1976 09/02/2007 -- Viking 2 Orbiter and South Pole of Mars 09/01/2007 -- Pioneer 11 makes first Saturn flyby, 1979 08/31/2007 -- Pioneer 10 passes through asteroid belt, sends Jupiter close08/30/2007 -- Maxwell Montes, the highest mountain on Venus 08/29/2007 -- Maat Mons, the tallest volcano on Venus 08/28/2007 -- William Herschel discovers Enceladus, 1789 08/27/2007 -- Keck I Telescope used to help discover TrES-4 08/26/2007 -- Astronomers discover largest known exoplanet, TrES-4 08/25/2007 -- Voyagers 1 and 2 find many satellites 08/24/2007 -- Voyager 2 makes its closest approach to Neptune 08/23/2007 -- Spitzer Space Telescope launched in 2003 08/22/2007 -- M31, the Andromeda Galaxy appears edge on 08/21/2007 -- A part of the Veil Nebula, the Witch's Broom Nebula 08/20/2007 -- Flamsteed's Atlas Coelestis 08/19/2007 -- Birthdate of John Flamsteed 08/18/2007 -- USNO's Asaph Hall discovers Phobos and Deimos 08/17/2007 -- One cool brown dwarf 08/16/2007 -- Opportunity knocks at Cape St. Vincent, Victoria Crater, Mar08/15/2007 -- Charon's frozen eruptions 08/14/2007 -- Keck helps reveal HD 15115 debris disk 08/13/2007 -- VIRTIS on Venus Express shows Venusian atmosphere 08/12/2007 -- Narrowing uncertainty of Earth's center of mass 08/11/2007 -- A good year for the Perseid Meteor shower 08/10/2007 -- NASA's Magellan arrives at Venus, 1989 08/09/2007 -- Supernova 2006X 08/08/2007 -- Open star clusters in Chi Persei 08/07/2007 -- A supernova remnant, N132D 08/06/2007 -- Saturn's rings in disappearing act 08/05/2007 -- M2 in Aquarius 08/04/2007 -- DDO 63, a tiny irregular galaxy 08/03/2007 -- NGC 6822, a close irregular galaxy 08/02/2007 -- Alambre Fire threatens Kitt Peak Observatory 08/01/2007 -- Maria Mitchell birthdate 07/31/2007 -- First two-nation human spaceflight mission, 1975 07/30/2007 -- Discovery Channel Telescope groundbreaking in 2005 07/29/2007 -- NASA founded in 1958 07/28/2007 -- Jupiter caught changing stripes 07/27/2007 -- NASA's New Horizons takes a nap 07/26/2007 -- The Trifid and Lagoon Nebulae 07/25/2007 -- The Virgo Cluster 07/24/2007 -- Omega Centauri 07/23/2007 -- Chandra X-Ray Observatory 07/22/2007 -- Birthdate of Wilhelm Bessel 07/21/2007 -- Comet Shoemaker-Levy 9 collides with Jupiter 07/20/2007 -- M41, also known as the Little Beehive Cluster 07/19/2007 -- Remembering pioneer Eugene M. Shoemaker, part 2 07/18/2007 -- Remembering pioneer Eugene M. Shoemaker, part 1 07/17/2007 -- Eta Carinae, a Luminous Blue Variable 07/16/2007 -- Asteroids Ceres, Vesta and NASA's Dawn 07/15/2007 -- NRAO celebrates 50 years 07/14/2007 -- Mariner 4 makes closest flyby of Mars 07/13/2007 -- ESA's Envisat spacecraft 07/12/2007 -- Venus reaches peak magnitude 07/11/2007 -- Kirkwood Gaps in the asteroid belt 07/10/2007 -- NASA's Voyager 1 and Voyager 2 07/09/2007 -- Voyager 2 makes closest approach to Jupiter 07/08/2007 -- Comets with two tails 07/07/2007 -- A galactic year 07/06/2007 -- The twin Keck Telescopes 07/05/2007 -- Tenth anniversary of NASA's Pathfinder 07/04/2007 -- Comet Tempel 1 and Deep Impact 07/03/2007 -- Neptune's moon Proteus 07/02/2007 -- Saturn's moons Tethys and Dione 07/01/2007 -- Comet Shoemaker-Levy 9 06/30/2007 -- Tunguska meteorite explosion, 1908 06/29/2007 -- George Ellery Hale born on this date in 1868 06/28/2007 -- Lowell Observatory astronomers co-discover expolanet TrES-3 06/27/2007 -- Cassini-Huygens begins orbiting Saturn in 2004 06/26/2007 -- Birthdate of Charles Messier 06/25/2007 -- Blue stars in M32 06/24/2007 -- Pismis 24 06/23/2007 -- The Zodiacal Light 06/22/2007 -- USNO astronomer Christy discovers Pluto's moon, Charon 06/21/2007 -- Anniversary of Royal Greenwich Observatory 06/20/2007 -- Tupan, a crater on Jupiter's moon, Io 06/19/2007 -- LONEOS captures image of lost asteroid Hermes 06/18/2007 -- Sally Ride, first American woman in space 06/17/2007 -- Supernova remnant E0102-72 06/16/2007 -- Valentina Tereshkova, first woman in space 06/15/2007 -- The moon's size 06/14/2007 -- Saturn V rocket & Apollo missions 06/13/2007 -- Pioneer 10 leaves solar system in 1983 06/12/2007 -- McAllister Space Theatre 06/11/2007 -- NEAR Shoemaker and asteroid Eros 06/10/2007 -- The Beehive Cluster, M44 06/09/2007 -- Tvashtar Catena on Io 06/08/2007 -- Giovanni Cassini's birthdate 06/07/2007 -- Caliban, a moon of planet Uranus 06/06/2007 -- Computer generated image of dark matter 06/05/2007 -- Internal movements in Orion Nebula 06/04/2007 -- NGC 1333 and stellar winds 06/03/2007 -- 200-inch Hale Telescope dedicated in 1948 06/02/2007 -- New Horizons and Callisto 06/01/2007 -- Asteroid Ida and moon Dactyl 05/31/2007 -- NPOI shows Vega is a rapid rotator seen pole on 05/30/2007 -- Spring stargazing in the Southwest U.S. 05/29/2007 -- Rho Ophiuchi, a star forming region 05/28/2007 -- Mercury may have molten core 05/27/2007 -- Mars rover Spirit finds evidence of volcanic activity 05/26/2007 -- Joseph von Fraunhofer and first astronomical spectroscope 05/25/2007 -- Solar wind, electrically charged particles far in space 05/24/2007 -- Neptune with adaptive optics on Keck Telescope 05/23/2007 -- Mare Orientale 05/22/2007 -- An unusual supernova, SN2006gy 05/21/2007 -- WMAP all-sky image 05/20/2007 -- WMAP launch 05/19/2007 -- Rosette Nebula 05/18/2007 -- Gyrochronology, a new method for aging stars 05/17/2007 -- Sir Lockyer, co-discoverer of helium 05/16/2007 -- First 3-D sun images by STEREO 05/15/2007 -- De Lecaille and constellations 05/14/2007 -- Skylab launched in 1973 05/13/2007 -- SOFIA's first flight 05/12/2007 -- The Hickson Compact Group, HCG 87 05/11/2007 -- HD 82943, a main sequence G dwarf 05/10/2007 -- White dwarf J0917+46 05/09/2007 -- Asteroid 2000PH5 05/08/2007 -- Immanuel Kant, the Milky Way and Island Universe 05/07/2007 -- The Via Lactea or Milky Way 05/06/2007 -- Four phases of star formation 05/05/2007 -- Alan Shepard, first American in space 05/04/2007 -- Extraordinary light from quasars 05/03/2007 -- The size of sunposts 05/02/2007 -- M106 and galactic spiral arms 05/01/2007 -- Kuiper discovers Nereid 04/30/2007 -- Water vapor identified in extrasolar planet's atmosphere 04/29/2007 -- Supernova 2006jc 04/28/2007 -- Shiveluch Volcano captured by MODIS 04/27/2007 -- Reddish glow from a lunar eclipse 04/26/2007 -- Mercury's orbit and Einstein's general theory of relativity 04/25/2007 -- HST deployed on this date in 1990 04/24/2007 -- Venus Express and Venusian atmospheric turbulence 04/23/2007 -- New Horizons and Io's Tvashtar Volcano 04/22/2007 -- LORRI captures Tvashtar eruption on Io 04/21/2007 -- Lyrid Meteor shower peak, April 21-22, 2007 04/20/2007 -- Brown dwarf and Gliese 229b 04/19/2007 -- Enceladus geyser in color 04/18/2007 -- Space endurance record set in 1965 aboard Gemini 04/17/2007 -- The Sunflower Galaxy, M63 04/16/2007 -- M6, the Butterfly Cluster 04/15/2007 -- Saturn's Cassini Division 04/14/2007 -- Hinode reveals Sun's active solar region 04/13/2007 -- Martian surface at Hellas Planitia 04/12/2007 -- First shuttle flight date in 1981 04/11/2007 -- Alice captures data on Io and Jupiter 04/10/2007 -- LEISA gets data for 3-D Jovian atmosphere maps 04/09/2007 -- Proxima Centauri and Robert Innes 04/08/2007 -- Saturn's moon Dione 04/07/2007 -- Slopes of Olympus Mons on Mars 04/06/2007 -- Globular star cluster NGC 6093, or M80 04/05/2007 -- 21-cm line origin 04/04/2007 -- NGC 4414 04/03/2007 -- M1, the Crab Nebula in Taurus 04/02/2007 -- Sun's first photo 04/01/2007 -- Halley a short-period comet? 03/31/2007 -- Uranian magnetosphere 03/30/2007 -- Sweet 16 for HST 03/29/2007 -- STEREO's Extreme Ultraviolet Imaging Telescope 03/28/2007 -- A first solar image from STEREO 03/27/2007 -- First light for South Pole Telescope 03/26/2007 -- Odysseus crater on Tethys 03/25/2007 -- Christiaan Huygens discovers Titan 03/24/2007 -- Walter Baade birthdate 03/23/2007 -- First image of the Moon 03/22/2007 -- The vast Tarantula Nebula 03/21/2007 -- Vernal equinox, 2007 03/20/2007 -- Mercury orbits Sun rapidly 03/19/2007 -- Rosetta, OSIRIS, and Mars 03/18/2007 -- Cosmonaut Leonov and first spacewalk 03/17/2007 -- Star cluster RCW 38 03/16/2007 -- Robert Goddard and modern spaceflight 03/15/2007 -- 28797 Ixion discovered by Deep Ecliptic Survey 03/14/2007 -- Einstein's birthday and gravitational bending 03/13/2007 -- Lowell Observatory founder, Percival Lowell's birthday 03/12/2007 -- Mather awarded Nobel Prize for Physics 03/11/2007 -- Daylight Saving Time begins 03/10/2007 -- The Hercules Cluster 03/09/2007 -- Planetary nebula NGC 2440 03/08/2007 -- Hubble captures Io features 03/07/2007 -- A collection of galaxies in Abel SO740 03/06/2007 -- SWAP on New Horizons 03/05/2007 -- Comet SWAN and the Solar Wind Anistropies camera 03/04/2007 -- Comet SWAN (C/2006 M4) 03/03/2007 -- Total lunar eclipse 03/02/2007 -- Alnilam in Orion's Belt 03/01/2007 -- Venera spacecraft and Venus 02/28/2007 -- The High Energy Stereoscopic System 02/27/2007 -- Titan's mid-latitude clouds 02/26/2007 -- Titan's north pole cloud 02/25/2007 -- Extrasolar planet HD209458b 02/24/2007 -- Jocelyn Bell Burnell and the first pulsar 02/23/2007 -- Globular star cluster M55 02/22/2007 -- Voyager 2, Neptune, and Triton 02/21/2007 -- Triton's canteloupe terrain 02/20/2007 -- John Glenn, first American to orbit Earth 02/19/2007 -- Nicolaus Copernicus born 02/18/2007 -- Clyde Tombaugh discovers Pluto 02/17/2007 -- Hebes Chasma on Mars 02/16/2007 -- Gerard Kuiper discovers Miranda in 1948 02/15/2007 -- Galileo Galilei birthdate 02/14/2007 -- New Horizons accelerates with Jupiter gravity assist 02/13/2007 -- New spectroscopic binary stars in complex hierarchical quadr02/12/2007 -- Spectroscopic binary stars in Ophiuchus 02/11/2007 -- Horsehead Nebula in Orion 02/10/2007 -- The Owl Nebula in Ursa Major 02/09/2007 -- A starved, massive black hole, SagA 02/08/2007 -- Dwarf stars form a supergiant 02/07/2007 -- Astronaut McCandless floats untethered in space 02/06/2007 -- Comet 73P/Schwassmann-Wachmann 3 02/05/2007 -- A recipe for Tempel 1's comet soup 02/04/2007 -- Interacting galaxies NGC 2535 and NGC 2536 02/03/2007 -- The first quasar triplet 02/02/2007 -- Bright quasars 02/01/2007 -- Comet McNaught 01/31/2007 -- A new 3-D map of dark matter 01/30/2007 -- Chasma Boreale on Mars 01/29/2007 -- The Phoenix Mission to Mars 01/28/2007 -- Two supernova remnants 01/27/2007 -- The Carina Nebula & Eta Carinae 01/26/2007 -- VLA radio telescope captures young protostars 01/25/2007 -- Tagish Lake meteorite 01/24/2007 -- Planetary Nebula NGC 7027 01/23/2007 -- Ulysses studies the sun 01/22/2007 -- Astronomy's H-R diagram, part 2 01/21/2007 -- Astronomy's H-R diagram, part 1 01/20/2007 -- The Sleeping Beauty or Black Eye Galaxy, M64 01/19/2007 -- NEAR Shoemaker descends towards asteroid Eros 01/18/2007 -- Barnard's Merope Nebula 01/17/2007 -- Johann Mayer and the proper motion of stars 01/16/2007 -- Edmond Halley and the motion of stars 01/15/2007 -- Gamma-ray bursts produce afterglow 01/14/2007 -- Titan's Sierras 01/13/2007 -- LH 95, about 160,000 light-years distant 01/12/2007 -- NASA's Explorer 1 and Van Allen Belts 01/11/2007 -- The Trifid Nebula, M20 01/10/2007 -- Two galaxies in Eridanus 01/09/2007 -- Stardust analysis reveals new comet findings 01/08/2007 -- Neptune's largest and smallest moons 01/07/2007 -- Galileo discovers four of Jupiter's moons 01/06/2007 -- The Perseus Nebula revealed by Spitzer Space Telescope 01/05/2007 -- Christian Doppler and the Doppler Effect 01/04/2007 -- Star cluster Pismis 24 and a spectroscopic binary 01/03/2007 -- Saturn's moon Phoebe 01/02/2007 -- Asteroid Ceres in 3D infrared model 01/01/2007 -- Mars Global Surveyor delivers results, part two 12/31/2006 -- Mars Global Surveyor delivers results, part one 12/30/2006 -- M20, The Trifid Nebula in Sagittarius 12/29/2006 -- Planet Uranus, rings discovery, image with moons 12/28/2006 -- The Antikythera Mechanism, part two 12/27/2006 -- The Antikythera Mechanism, part one 12/26/2006 -- ESA's Rosetta spacecraft 12/25/2006 -- The Blue Snowball Planetary Nebula 12/24/2006 -- Christmas Tree Cluster in the Unicorn 12/23/2006 -- Celebrating a Gemini rendezvous 12/22/2006 -- New Horizons tests LORRI, spies Pluto 12/21/2006 -- A Saturn year is nearly 30 years on Earth 12/20/2006 -- Sagittarius Dwarf getting torn apart 12/19/2006 -- M4 near Antares 12/18/2006 -- Antares and two star clusters, NGC 6144 and M4 12/17/2006 -- A spectacular transit of Mercury 12/16/2006 -- Bradley and the discovery of the speed of light 12/15/2006 -- Jupiter and discovery of the speed of light 12/14/2006 -- Discovery of Sirius B 12/13/2006 -- Long-lived footprints on the moon 12/12/2006 -- NGC 5746 from the Galaxy Catalog 12/11/2006 -- HST captures a light echo 12/10/2006 -- NASA's Galileo studies Ganymede 12/09/2006 -- Enceladus and alignment clues 12/08/2006 -- The Large Magellanic Cloud and NCG 1850 12/07/2006 -- Saturn's moon Hyperion has potato-like shape 12/06/2006 -- Comet Kohoutek 12/05/2006 -- The Spirograph Nebula, IC 418 12/04/2006 -- HST's new lease on life 12/03/2006 -- Jupiter's Little Red Spot 12/02/2006 -- Orion Nebula & Trapezium star 12/01/2006 -- NGC 4650A, a polar-ring galaxy 11/30/2006 -- SOHO discovers comets 11/29/2006 -- Johannes Kepler's three laws 11/28/2006 -- Johannes Kepler, a pioneer 11/27/2006 -- Powerful flare spotted by Swift 11/26/2006 -- Ice sparse on moon 11/25/2006 -- Science instruments on Hubble 11/24/2006 -- The Kepler Mission 11/23/2006 -- Cepheid variable stars 11/22/2006 -- Voyager 2 shows Neptune's clouds 11/21/2006 -- STEREO launched 11/20/2006 -- Sacramento Peak Observatory 11/19/2006 -- Messenger gets boost from Venus 11/18/2006 -- HH32, a small nebulosity near newly formed stars 11/17/2006 -- M15 observed by Hubble 11/16/2006 -- Tycho Brahe and supernova in Cassiopeia 11/15/2006 -- NASA, DLR's SOFIA observatory preps for first test flight 11/14/2006 -- Earth, moon, libration 11/13/2006 -- Yohkoh observes the sun 11/12/2006 -- Antennae galaxies collide 11/11/2006 -- Three views of asteroid Vesta 11/10/2006 -- Beta Pictoris and planet formation 11/09/2006 -- The Chandler Wobble 11/08/2006 -- Neptune's tenuous rings 11/07/2006 -- Callisto's impact craters chain 11/06/2006 -- Saturn processes sort ring particles 11/05/2006 -- Egg Nebula with Hubble's NICMOS 11/04/2006 -- Opportunity reaches Victoria Crater 11/03/2006 -- R136 in 30 Doradus 11/02/2006 -- The Large Magellanic Cloud 11/01/2006 -- Cat's Eye Nebula 10/31/2006 -- Abell 2218 bends light 10/30/2006 -- LORRI image of Jupiter 10/29/2006 -- M90 in the Big Picture 10/28/2006 -- Transit planet HAT-P-1 10/27/2006 -- Two new brown dwarfs 10/26/2006 -- The right stuff in space 10/25/2006 -- Superbubbles add energy and gas to galaxies 10/24/2006 -- The moon is flat? 10/23/2006 -- The Almagest by Ptolemy 10/22/2006 -- Claudius Ptolemaeus, Ptolemy 10/21/2006 -- Voyager One travels 100 AU 10/20/2006 -- The Mars Orbital Camera 10/19/2006 -- Cliffs on Miranda 10/18/2006 -- A massive star Antares 10/17/2006 -- A small emission nebula, NGC 896 10/16/2006 -- NASA's FAST satellite 10/15/2006 -- The Cosmic Background Imager 10/14/2006 -- A close-up of Mars and Mars Express 10/13/2006 -- M22 in Sagittarius 10/12/2006 -- NASA's Mars Reconnaissance Orbiter 10/11/2006 -- Asteroid Ida and Dactyl 10/10/2006 -- Comparing Earth and Venus 10/09/2006 -- A rock sample from the moon 10/08/2006 -- Mariner 10 and Mercury 10/07/2006 -- The Harvest Moon 10/06/2006 -- Jupiter's core 10/05/2006 -- Sedna - most distant object known 10/04/2006 -- Extrasolar planet HD 209458 10/03/2006 -- Cygnus the Swan and M39 10/02/2006 -- Saturn in the morning 10/01/2006 -- A lunar meteorite 09/30/2006 -- Astronomer Maria Mitchell 09/29/2006 -- A Martian dust devil 09/28/2006 -- Rilles on the moon 09/27/2006 -- A brief history of the telescope 09/26/2006 -- A Close look at the asteroid Eros 09/25/2006 -- Search for extrasolar planets 09/24/2006 -- The moon, Spica, and Mercury 09/23/2006 -- First day of autumn in the Northern Hemisphere 09/22/2006 -- Today's annual solar eclipse 09/21/2006 -- The spectacular comet Hale-Bopp 09/20/2006 -- Day and night on Mercury 09/19/2006 -- DCT primary mirror arrives in Tucson 09/18/2006 -- The status of Pluto 09/17/2006 -- Supernova explosion and Cassiopeia A 09/16/2006 -- The Mercurian crater Degas 09/15/2006 -- The height and breadth of Olympus Mons 09/14/2006 -- Why our sky is blue 09/13/2006 -- The south pole of Venus 09/12/2006 -- The Big Dipper and the Owl 09/11/2006 -- The discoveries of Caroline Herschel 09/10/2006 -- The Saturn Nebula 09/09/2006 -- Astronomy loses a pioneer: Dr. James A. Van Allen 09/08/2006 -- The Orion Nebula in the infrared 09/07/2006 -- The terminator on Jupiter's moon Europa 09/06/2006 -- The Sun's position and the meridian 09/05/2006 -- The asteroid Ceres 09/04/2006 -- Nine new satellites for Saturn 09/03/2006 -- The Great Square of Pegasus 09/02/2006 -- The massive star cluster Omega Centauri 09/01/2006 -- The European Space Agency's Rosetta orbiter 08/31/2006 -- The twinkling of stars 08/30/2006 -- Our star, the Sun 08/29/2006 -- Copernicus and his book, Concerning the Revolutions of Celes08/28/2006 -- Constellations and culture 08/27/2006 -- The Earth and the stars 08/26/2006 -- The double star Alberio 08/25/2006 -- The glow of the Lagoon nebula 08/24/2006 -- Valleys and craters on Titania 08/23/2006 -- A unique planet in M4 08/22/2006 -- The far side of the moon 08/21/2006 -- Jupiter's red spots in the near infrared 08/20/2006 -- Saturn from Voyager 1 08/19/2006 -- An optical double star in the Big Dipper 08/18/2006 -- Open star cluster M29 08/17/2006 -- A special instrument aboard New Horizons 08/16/2006 -- Phases of the moon by Galileo 08/15/2006 -- Our moon and Io 08/14/2006 -- Pools of liquid on Titan? 08/13/2006 -- Radio astronomy pioneer, Nan Dieter Conklin 08/12/2006 -- A double quasar in Ursa Major 08/11/2006 -- Planets beyond our solar system 08/10/2006 -- Cometary knots in the Helix 08/09/2006 -- The Wild Duck Cluster 08/08/2006 -- Seas on the moon 08/07/2006 -- Our Sun from Voyager 1 08/06/2006 -- Wave oscillations on the Sun 08/05/2006 -- The stellar nursery NGC 7129 08/04/2006 -- Perseid meteor shower peak -- August 12-13 08/03/2006 -- Globular star cluster M22 08/02/2006 -- The constellation Sagittarius and the teapot 08/01/2006 -- Primary mirror of Lowell Observatory's Discovery Channel Tel07/31/2006 -- M51 -- the Whirlpool Galaxy 07/30/2006 -- Protoplanetary disks in the Orion Nebula 07/29/2006 -- The summer constellation Cygnus and the Cygnus Loop 07/28/2006 -- The Eight-Burst Nebula 07/27/2006 -- The morning star 07/26/2006 -- Hercules and the Keystone asterism 07/25/2006 -- The Delta Aquarid meteor shower 07/24/2006 -- Saturn's moon Titan 07/23/2006 -- The Space Shuttle Discovery and the ISS 07/22/2006 -- Lift-off of the Space Shuttle Discovery 07/21/2006 -- The last Apollo mission to the moon 07/20/2006 -- Anniversary of Apollo 11 landing on the moon 07/19/2006 -- First rocket launch from Cape Canaveral 07/18/2006 -- The nature of Messier object 71 07/17/2006 -- New discoveries in a protoplanetary disk 07/16/2006 -- Pluto's newly discovered moons named 07/15/2006 -- Birth date of Jocelyn Bell Burnell 07/14/2006 -- Building blocks of life 07/13/2006 -- The Snake Nebula 07/12/2006 -- The Vatican Advanced Technology Telescope 07/11/2006 -- A Wolf-Rayet star 07/10/2006 -- A mirage on Earth 07/09/2006 -- A fireball in Norway 07/08/2006 -- New Horizons in the main asteroid belt 07/07/2006 -- The Ring Nebula in Lyra 07/06/2006 -- A double-double star in the constellation Lyra 07/05/2006 -- The bright star Vega 07/04/2006 -- The Firework Nebula 07/03/2006 -- The North America Nebula 07/02/2006 -- The U.S. Naval Observatory, Flagstaff 07/01/2006 -- The Apollo missions and the U.S. Geologic Survey 06/30/2006 -- Anniversary of the Tunguska explosion 06/29/2006 -- Planetary nebula NGC 7662 06/28/2006 -- Seeing the outer planets 06/27/2006 -- Four planets visible in the night sky 06/26/2006 -- The double star Tau Leonis 06/25/2006 -- The Navy Prototype Optical Interferometer 06/24/2006 -- Open star cluster M103 06/23/2006 -- The Prime Meridian 06/22/2006 -- Discovery anniversary date of Charon 06/21/2006 -- First day of Summer in Northern Hemisphere 06/20/2006 -- Interesting rock outcrop on Mars 06/19/2006 -- The Starburst Galaxy 06/18/2006 -- Transit circle telescopes 06/17/2006 -- Space Shuttle Discovery 06/16/2006 -- First woman in space 06/15/2006 -- An eruption on Earth from space 06/14/2006 -- The Coma Galaxy Cluster 06/13/2006 -- The nucleus of a comet 06/12/2006 -- A view from Cassini 06/11/2006 -- New planet discovered 06/10/2006 -- The Merope Nebula 06/09/2006 -- Globular star cluster M5 06/08/2006 -- Birth date of Giovanni Cassini 06/07/2006 -- A loop on the Sun 06/06/2006 -- Spiral galaxy NGC 3190 06/05/2006 -- The journeys of Voyager 1 and 2 06/04/2006 -- The Sun's heliosphere 06/03/2006 -- The globular star cluster M4 in Scorpius 06/02/2006 -- The supergiant star Antares 06/01/2006 -- Open star cluster NGC 6231 05/31/2006 -- At Jupiter's core 05/30/2006 -- Naming features on planets 05/29/2006 -- The Torino Scale 05/28/2006 -- The founding of Lowell Observatory 05/27/2006 -- Pockmarked Mimas 05/26/2006 -- The Orion Nebula 05/25/2006 -- The tilt of planet Uranus 05/24/2006 -- Saturn's satellite Iapetus 05/23/2006 -- The LIGO project and gravitational waves 05/22/2006 -- The Sunflower Galaxy 05/21/2006 -- M3 in Canes Venatici 05/20/2006 -- An impact crater on Earth 05/19/2006 -- Trojan asteroids 05/18/2006 -- Venus at the break of dawn 05/17/2006 -- Birth date of Joseph Norman Lockyer 05/16/2006 -- Saturn and the Beehive 05/15/2006 -- Cloud iridescence in our skies 05/14/2006 -- The Sun's annalemma 05/13/2006 -- Our moon and Io 05/12/2006 -- Comet Schwassmann-Wachmann 3 05/11/2006 -- NASA's Mars Reconnaissance Orbiter 05/10/2006 -- Pluto and its moons 05/09/2006 -- Venus's highest mountain 05/08/2006 -- The waxing gibbous moon 05/07/2006 -- Corvus, the Crow 05/06/2006 -- National Astronomy Day 05/05/2006 -- Anniversary date of the first American in space 05/04/2006 -- The hydrological cycle on Titan 05/03/2006 -- The double star Rho Cancri 05/02/2006 -- M100 and the Virgo cluster of galaxies 05/01/2006 -- The constellation Bootes, the Herdsman 04/30/2006 -- Black holes in the galaxy cluster Abell 400 04/29/2006 -- The Virgo Cluster of galaxies 04/28/2006 -- The gravity of galaxies 04/27/2006 -- A compact group of galaxies - Hickson 40 04/26/2006 -- The Kuiper Belt's 2003 EL61 04/25/2006 -- The Sombrero galaxy 04/24/2006 -- Cometary globules 04/23/2006 -- Jupiter's new red spot 04/22/2006 -- Planetary nebula NGC 3242 04/21/2006 -- Lyrid Meteor shower peaks April 22 04/20/2006 -- The Antennae Galaxy 04/19/2006 -- Galaxies M81 and M82 04/18/2006 -- A close-up of the Sun 04/17/2006 -- Gemini and the open star cluster, M35 04/16/2006 -- Planet Jupiter and the Galilean satellites 04/15/2006 -- Arcturus on the rise 04/14/2006 -- A new stellar discovery 04/13/2006 -- Saturn, a moon, and a ring 04/12/2006 -- Anniversary of the first human in space 04/11/2006 -- The Venus Express spacecraft 04/10/2006 -- Volcanoes on Venus 04/09/2006 -- Moons over Mars 04/08/2006 -- Mercury at greatest elongation 04/07/2006 -- NASA's Mars Reconnaissance Orbiter 04/06/2006 -- The Globular Star Cluster - M3 04/05/2006 -- The Whirlpool Galaxy - M51 04/04/2006 -- Impact crater on the far side of the moon 04/03/2006 -- First spacecraft to orbit moon 04/02/2006 -- Lagrangian points in space 04/01/2006 -- The moon's occultation of the Pleiades star cluster 03/31/2006 -- The terminator: the boundary between night and day 03/30/2006 -- Water on Enceladus 03/29/2006 -- Partial and total solar eclipse today 03/28/2006 -- The constellation Lepus, the hare 03/27/2006 -- The asteroid belt's Kirkwood Gaps 03/26/2006 -- Neptune's largest moon - Triton 03/25/2006 -- A coronal show from the Sun 03/24/2006 -- Polaris - a triple star system 03/23/2006 -- Titan's hazy upper atmosphere 03/22/2006 -- The cratered moon Callisto 03/21/2006 -- The Tadpole galaxy and its tail 03/20/2006 -- First day of spring 03/19/2006 -- Where is New Horizons? 03/18/2006 -- The luminous Pistol star 03/17/2006 -- Tycho's supernova 03/16/2006 -- No weather on the moon 03/15/2006 -- Jupiter's wind-driven cloud bands 03/14/2006 -- Measuring night sky objects 03/13/2006 -- Birth date of Percival Lowell 03/12/2006 -- A spacesuit in orbit 03/11/2006 -- Long black streaks on Triton 03/10/2006 -- Anniversary date for the discovery of the rings of Uranus 03/09/2006 -- The fabulous Horsehead Nebula 03/08/2006 -- In search of Messier objects 03/07/2006 -- The Leo Triplet of galaxies 03/06/2006 -- Leo, the Lion, beckons spring skies 03/05/2006 -- The movies and the stars 03/04/2006 -- Oberon - a satellite of planet Uranus 03/03/2006 -- A view of Earth from space 03/02/2006 -- The open star cluster M41 03/01/2006 -- The Wild Duck cluster of stars 02/28/2006 -- Sun Pillars in winter 02/27/2006 -- Stars in the night 02/26/2006 -- The Large Magellanic Cloud 02/25/2006 -- The double star Almach 02/24/2006 -- Discovering extrasolar planets 02/23/2006 -- A smile in the night sky 02/22/2006 -- Orion, the Hunter and Betelgeuse 02/21/2006 -- Prototype of Cepheid variable stars 02/20/2006 -- M76 - the Little Dumbbell Nebula 02/19/2006 -- Kemble's Cascade of stars 02/18/2006 -- Anniversary of the discovery of Pluto 02/17/2006 -- Venus, the morning star 02/16/2006 -- Classification of galaxies 02/15/2006 -- Galaxies outside our own Milky Way 02/14/2006 -- Astronomer Henrietta Leavitt 02/13/2006 -- The two tails of comets 02/12/2006 -- Patterns on the moon 02/11/2006 -- Jupiter's great red spot 02/10/2006 -- The Sun and sound waves 02/09/2006 -- Jupiter's moon Europa 02/08/2006 -- A large meteor or bolide 02/07/2006 -- The constellation Cancer, the crab 02/06/2006 -- Eighteenth century French astronomer Nicolas Louis de Lacail02/05/2006 -- The moon, Pleiades, and Mars 02/04/2006 -- 100th anniversary of Clyde Tombaugh's birth 02/03/2006 -- Asteroids 11 Parthenope and 16 Psyche 02/02/2006 -- Cassini's Bright Spot on the moon 02/01/2006 -- Spiral galaxy M64 01/31/2006 -- Comets: dirty snowballs 01/30/2006 -- Constellations: patterns in the sky 01/29/2006 -- New rings and moons for Uranus 01/28/2006 -- The Sun's bubbles 01/27/2006 -- Anniversary of the Apollo 1 tragedy 01/26/2006 -- N44 superbubble complex 01/25/2006 -- Saturn's moons Dione and Helene 01/24/2006 -- The constellation Orion, the hunter 01/23/2006 -- The constellation Eradinus, the river 01/22/2006 -- Computer simulation of a spiral galaxy 01/21/2006 -- The California Nebula 01/20/2006 -- New Horizons is on its way! 01/19/2006 -- Saturn's moons, Tethys and Enceladus 01/18/2006 -- Meteorology and geology on Titan 01/17/2006 -- A meteoroid collides with the moon 01/16/2006 -- Auroras on Earth 01/15/2006 -- X-rays, gamma-rays and charged particles 01/14/2006 -- The Stardust capsule reentry 01/13/2006 -- Sirius, second only to the Sun 01/12/2006 -- The binary star Capella 01/11/2006 -- The winter hexagon 01/10/2006 -- The Hind's Crimson star 01/09/2006 -- Orion and the Orion Nebula 01/08/2006 -- Edge-on view of Saturn's rings 01/07/2006 -- A setting Venus on the horizon 01/06/2006 -- Jupiter rising in early morning 01/05/2006 -- Water on Mars 01/04/2006 -- Quadrantids meteor shower peaks tonight 01/03/2006 -- The Beehive Cluster on the rise 01/02/2006 -- A lunar halo 01/01/2006 -- Lift off for New Horizons 12/31/2005 -- Jupiter's satellite Thebes 12/30/2005 -- Temperature variations on Mercury 12/29/2005 -- A crescent Uranus 12/28/2005 -- Kepler's supernova 12/27/2005 -- Birth date of Johannes Kepler 12/26/2005 -- Sprites in the sky 12/25/2005 -- Largest volcanoes in the solar system 12/24/2005 -- Anniversary of first humans to journey to the moon 12/23/2005 -- A discovery on Enceladus 12/22/2005 -- The Whirlpool galaxy 12/21/2005 -- First day of winter 12/20/2005 -- The weather on Jupiter 12/19/2005 -- Asteroid 4 Vesta 12/18/2005 -- Saturn in the night sky 12/17/2005 -- Gravitational lensing and Einstein Rings 12/16/2005 -- Robert's quartet of galaxies 12/15/2005 -- The topography of Mars 12/14/2005 -- The yellow and blue double star Alberio 12/13/2005 -- Largest telescope in the Southern Hemisphere 12/12/2005 -- The open star cluster, the Hyades 12/11/2005 -- The moon and Mars 12/10/2005 -- The ringed planet Uranus 12/09/2005 -- The moon and mind over matter 12/08/2005 -- Interesting life on Earth 12/07/2005 -- The Bubble Nebula 12/06/2005 -- Open star cluster M103 12/05/2005 -- The constellation Cassiopeia 12/04/2005 -- The crescent moon and Venus 12/03/2005 -- The new object beyond Pluto, 2003 UB313 12/02/2005 -- The Fornax cluster of galaxies 12/01/2005 -- The star cluster the Pleiades 11/30/2005 -- The red giant variable star Mira 11/29/2005 -- The Horsehead Nebula 11/28/2005 -- Stephan's Quintet of galaxies 11/27/2005 -- The orbital dance of Epimetheus and Janus 11/26/2005 -- Wave oscillations in the Sun 11/25/2005 -- The birth of radio astronomy 11/24/2005 -- Dust rings around a galaxy 11/23/2005 -- Titan rocket launch 11/22/2005 -- Pluto and Charon 11/21/2005 -- The naming of astronomical objects 11/20/2005 -- Two newly discovered moons of Pluto 11/19/2005 -- A gas bubble from NGC 4438 11/18/2005 -- Sculpting on Mars 11/17/2005 -- Peak of the Leonid meteor shower 11/16/2005 -- Our Earth as an apple 11/15/2005 -- The spiral galaxy M33 11/14/2005 -- Mars and the moon 11/13/2005 -- The Jewel Box cluster of stars 11/12/2005 -- Saturn's moon Dione 11/11/2005 -- A carbon star 11/10/2005 -- Invention of the telescope 11/09/2005 -- Birth date of Carl Sagan 11/08/2005 -- The rover Opportunity on Mars 11/07/2005 -- Planet at opposition this evening 11/06/2005 -- The rover Spirit on Mars 11/05/2005 -- Leonard Martin's studies of Mars 11/04/2005 -- Percival Lowell's study of Mars 11/03/2005 -- Defining an opposition 11/02/2005 -- Storms on Saturn 11/01/2005 -- The red supergiant star Betelgeuse 10/31/2005 -- A Witch Head Nebula for Halloween 10/30/2005 -- The Cat's Eye Nebula 10/29/2005 -- A close approach by planet Mars 10/28/2005 -- The eclipsing binary star Algol 10/27/2005 -- The Ghost Head Nebula 10/26/2005 -- Globular star cluster Omega Centauri 10/25/2005 -- The constellation the Sea Goat 10/24/2005 -- Linear features on the moon 10/23/2005 -- M97 - The Owl Nebula 10/22/2005 -- A Martian solar eclipse 10/21/2005 -- Peak of the Orionid meteor shower 10/20/2005 -- Comet Hale-Bopp in 1997 10/19/2005 -- The Flame Nebula 10/18/2005 -- Craters for Judy Resnick and Christa McAuliffe 10/17/2005 -- October's full moon 10/16/2005 -- Partial lunar eclipse 10/15/2005 -- A white dwarf star 10/14/2005 -- M39 in Cygnus the Swan 10/13/2005 -- Asteroid Sylvia and her satellites 10/12/2005 -- Cassini - portrait of Mimas 10/11/2005 -- Liftoff anniversary of Apollo 7 10/10/2005 -- A shoreline on Saturn's moon Titan 10/09/2005 -- The Owl Cluster 10/08/2005 -- The aftermath of Deep Impact 10/07/2005 -- Comet Tempel 1 and Deep Impact 10/06/2005 -- The crescent moon joins Venus 10/05/2005 -- The scorpion red star Antares 10/04/2005 -- The launching of Sputnik 1 10/03/2005 -- Ramadan and the crescent moon 10/02/2005 -- An annular solar eclipse 10/01/2005 -- The sunflower galaxy in autumn 09/30/2005 -- The bright planet Venus at dusk 09/29/2005 -- The April 2005 total solar eclipse 09/28/2005 -- The 2010 launch of Juno 09/27/2005 -- Saturn's changing rings 09/26/2005 -- The solar wind and Earth 09/25/2005 -- Albert Einstein's famous papers 09/24/2005 -- The double cluster in autumn skies 09/23/2005 -- Discovery of planet Neptune 09/22/2005 -- First day of fall 09/21/2005 -- Autumn asterisms, including the teapot 09/20/2005 -- Signs of approaching autumn 09/19/2005 -- The summer triangle in winter 09/18/2005 -- Discovery of SOHO comets 09/17/2005 -- A mountain on Io 09/16/2005 -- The Helix Nebula 09/15/2005 -- Kepler's Star - a supernova 09/14/2005 -- The zodiac - a circle of animals 09/13/2005 -- The moon's Ariadaeus Rille 09/12/2005 -- Earth and Mars 09/11/2005 -- The ecliptic - a path through the sky 09/10/2005 -- The Garnet Star or Erakis 09/09/2005 -- The size of stars 09/08/2005 -- A star's brightness as seen from Earth 09/07/2005 -- The magnitude scale of stars' brightnesses 09/06/2005 -- Stars in our night sky 09/05/2005 -- The constellation Lacerta, the Lizard 09/04/2005 -- The constellation Capricornus 09/03/2005 -- A stellar spire in the Eagle Nebula 09/02/2005 -- The constellation Draco the Dragon 09/01/2005 -- Within the constellation Lyra 08/31/2005 -- The story of Uranus 08/30/2005 -- The Lagoon Nebula 08/29/2005 -- The Belt of Venus 08/28/2005 -- Celestial navigation 08/27/2005 -- The dark Snake Nebula 08/26/2005 -- The effects of gravity on galaxies 08/25/2005 -- Spider webs on Venus 08/24/2005 -- The vastness of space 08/23/2005 -- Mercury at greatest elongation 08/22/2005 -- The Andromeda galaxy from GALEX 08/21/2005 -- Mars in the morning 08/20/2005 -- Ptolemy's cluster of stars 08/19/2005 -- Jupiter and Venus setting low in the west 08/18/2005 -- The moon at perigee 08/17/2005 -- A surprise on Saturn's moon Enceladus 08/16/2005 -- The Sun's green flash 08/15/2005 -- Charon's occultation 08/14/2005 -- Brown dwarf stars 08/13/2005 -- The Ant Nebula 08/12/2005 -- The Global Positioning System 08/11/2005 -- Peak of the Perseid Meteor Shower 08/10/2005 -- A greenhouse in space 08/09/2005 -- The Chandra X-ray Observatory 08/08/2005 -- Capabilities of the Discovery Channel Telescope 08/07/2005 -- Groundbreaking for Lowell's Discovery Channel Telescope 08/06/2005 -- The constellation Cygnus, the Swan 08/05/2005 -- Sedna - most distant known object 08/04/2005 -- The atmosphere on Mars 08/03/2005 -- Our Sun is slowing down 08/02/2005 -- Categories of optical telescopes 08/01/2005 -- Our Milky Way Galaxy 07/31/2005 -- The Ring Nebula - M57 07/30/2005 -- Neptune as a crescent 07/29/2005 -- M82 - the Cigar galaxy 07/28/2005 -- Three summer meteor showers 07/27/2005 -- The constellation Delphinus, the Dolphin 07/26/2005 -- The Deep Impact crash 07/25/2005 -- Saturn's rings and Enceladus 07/24/2005 -- The effects of light pollution 07/23/2005 -- Saturn's rings 07/22/2005 -- Measuring distance in astronomy 07/21/2005 -- The seas of the moon 07/20/2005 -- Anniversary of first men on the moon 07/19/2005 -- A complete rotation of Mars 07/18/2005 -- The asterism the Kite 07/17/2005 -- Sungrazers comets 07/16/2005 -- Comet Shoemaker-Levy 9 and Jupiter 07/15/2005 -- Rocky objects orbiting the Sun 07/14/2005 -- The bright star Vega 07/13/2005 -- The big "W" in the sky 07/12/2005 -- Mars' north pole 07/11/2005 -- Jupiter - wider at the middle 07/10/2005 -- Lunar marbles 07/09/2005 -- The moon in color 07/08/2005 -- The components of comets 07/07/2005 -- The Virgo Cluster of galaxies 07/06/2005 -- The eclipsing binary Spica 07/05/2005 -- The constellation Ophiucus and Messier objects 07/04/2005 -- An exploded massive star 07/03/2005 -- Deep Impact and Comet Tempel 1 07/02/2005 -- The universe then and now 07/01/2005 -- Tides on Earth 06/30/2005 -- Jupiter's active moon Io 06/29/2005 -- How rainbows form 06/28/2005 -- Locating astronomical objects 06/27/2005 -- The double star system Albireo 06/26/2005 -- Birth date of Charles Messier 06/25/2005 -- Uranus' moon Umbriel 06/24/2005 -- Lightning! 06/23/2005 -- Scientist Christiaan Huygens 06/22/2005 -- The Venus transit of 2004 06/21/2005 -- The first day of summer 06/20/2005 -- The Sun and moon 06/19/2005 -- The changing pole star 06/18/2005 -- A line of planets 06/17/2005 -- Our solo Sun 06/16/2005 -- Domes on the moon 06/15/2005 -- A history of widespread surface water on Mars 06/14/2005 -- The planets and their symbols 06/13/2005 -- The International Space Station 06/12/2005 -- Arcturus - fourth brightest star 06/11/2005 -- Lake-effect snow on Earth 06/10/2005 -- The moon's Plato and Alpine Valley 06/09/2005 -- Jupiter's moon dance 06/08/2005 -- Birth date of Giovanni Cassini 06/07/2005 -- Venus, our evening "star" 06/06/2005 -- Stars: colors and their temperatures 06/05/2005 -- The naming of Uranus 06/04/2005 -- Saturn's tiny moon in the Keeler gap 06/03/2005 -- 40-year anniversary of Ed White's space walk 06/02/2005 -- Saturn's moon Rhea 06/01/2005 -- The discovery of Hale-Bopp 05/30/2005 -- The rings of Jupiter 05/29/2005 -- The asteroid Icarus 05/28/2005 -- The founding of Lowell Observatory 05/27/2005 -- An atmosphere on Enceladus? 05/26/2005 -- The Trifid nebula in infrared 05/25/2005 -- Saturn's small moon Epimetheus 05/24/2004 -- The moon and Antares 05/23/2005 -- Sheets of debris from M49 05/22/2005 -- The moon's crater Copernicus 05/21/2005 -- A meteorite on Mars 05/20/2005 -- NGC 2359 - a bubble of gas 05/19/2005 -- The fascinating planet Neptune 05/18/2005 -- Globular star cluster M4 05/17/2005 -- Protoplanetary disks in the Orion nebula 05/16/2005 -- The Alpha Centauri star system 05/15/2005 -- The mysterious moon Europa 05/14/2005 -- The bright and compact galaxy M94 05/13/2005 -- The Northern Crown 05/12/2005 -- Enjoying the night sky 05/11/2005 -- The brightest stars in springtime 05/10/2005 -- New Horizons: destination Pluto 05/09/2005 -- Main belt asteroid Mathilde 05/08/2005 -- The distant object Sedna 04/30/2005 -- The Andromeda galaxy and the unaided eye 04/29/2005 -- The moon and Sun from Earth's perspective 04/28/2005 -- Our Earth and gamma rays 04/27/2005 -- Two galaxies merge 04/26/2005 -- The Orion Nebula 04/25/2005 -- The wonders of Orion, the hunter 04/24/2005 -- Saturn and Gemini the twins 04/23/2005 -- The lunar soil: regolith 04/22/2005 -- It's Earth Day! 04/21/2005 -- The Lyrid meteor shower peaks tonight 04/20/2005 -- The Owl Nebula in the Big Dipper 04/19/2005 -- The terrains of the moon 04/18/2005 -- Spotting a "glory" 04/17/2005 -- Observing Jupiter 04/16/2005 -- A solar eclipse and the Sun's corona 04/15/2005 -- National Astronomy Day 04/14/2005 -- A hyper-velocity star discovered 04/13/2005 -- Asteroid 2004 MN4 04/12/2005 -- Anniversary of the space shuttle Columbia launch 04/11/2005 -- The Beehive cluster of stars 04/10/2005 -- New planets' light directly detected 04/09/2005 -- The moon's path around the Earth 04/08/2005 -- The telescope 04/07/2005 -- The search for near-Earth asteroids 04/06/2005 -- Intense gravity of a black hole 04/05/2005 -- From here to Pluto 04/04/2005 -- The highest mountain on Venus 04/03/2005 -- Daylight Saving Time 04/02/2005 -- The Ant Nebula 04/01/2005 -- Weather on Mars 03/31/2005 -- Jupiter's moon Ganymede 03/30/2005 -- A near-Earth asteroid 03/29/2005 -- Asteroids and the Kirkwood Gaps 03/28/2005 -- Saturn's rings viewed from Earth 03/27/2005 -- Space debris 03/26/2005 -- Titan's riverbeds 03/25/2005 -- Volcanic activity on Mars 03/24/2005 -- Iapetus and its giant ridge 03/23/2005 -- 1960: A decade in astronomy 03/22/2005 -- Planet Pluto's eccentric orbit 03/21/2005 -- The evening and morning "stars" 03/20/2005 -- Spring is here 03/19/2005 -- The moon Triton and its orbit 03/18/2005 -- First space walk in history 03/17/2005 -- The advent of radio astronomy 03/16/2005 -- Comet Hale-Bopp 03/15/2005 -- 1924 Hubble discovery 03/14/2005 -- Our Sun 03/13/2005 -- Anniversary of Percival Lowell's birth 03/12/2005 -- Hubble's Variable Nebula 03/11/2005 -- A star's spectrum 03/10/2005 -- Annivery of Uranus rings discovery 03/09/2005 -- Our Sun's solar maximum 03/08/2005 -- Leo is on the march 03/07/2005 -- The sky's constellations 03/05/2005 -- Inside Callisto03/06/200503/04/2005 -- The youthful rings of Saturn 03/03/2005 -- The star Epsilon Eridani 03/02/2005 -- The moon's far side 03/01/2005 -- Saturn's secrets unveiled by Cassini 02/28/2005 -- Ingredients of the universe 02/27/2005 -- The moon and Jupiter 02/26/2005 -- Interesting objects in Monoceros 02/25/2005 -- Sand dunes on Mars 02/24/2005 -- First report of spots on our Sun 02/23/2005 -- The open cluster M50 02/22/2005 -- Jupiter in the morning sky 02/21/2005 -- The Sun and E=MC2 02/20/2005 -- Anniversary date of John Glenn's orbit around Earth 02/05/2005 -- The moon's Mare Serenitatis 02/04/2005 -- The supernova of 1006 02/03/2005 -- The Winter Hexagon 02/02/2005 -- Gemini's star Castor 02/01/2005 -- The Beehive cluster M44 01/31/2005 -- Messier objects 81 and 82 01/30/2005 -- Huygens space probe landing 01/29/2005 -- Saturn's moon Rhea 01/28/2005 -- Comets and asteroids: ancient inhabitants 01/27/2005 -- The Apollo 1 tragedy 01/26/2005 -- A Seyfert galaxy 01/25/2005 -- Tonight's full moon 01/24/2005 -- The Local Group ofgalaxies 01/23/2005 -- The path of a total solar eclipse 01/22/2005 -- Erosion on Earth and on the moon 01/21/2005 -- The Milky Way in winter 01/20/2005 -- The impressive Orion 01/19/2005 -- A fly-by of Saturn's moon Iapetus 01/18/2005 -- The density of planet Mercury 01/17/2005 -- The new Comet Machholz 01/16/2005 -- The Van Allen Belts 01/15/2005 -- The distant Pluto 01/14/2005 -- Subaru and the Pleiades 01/13/2005 -- Saturn at opposition tonight 01/12/2005 -- Points of interest on Mars 01/11/2005 -- Sunrise on Venus 01/10/2005 -- The bright star Procyon 01/09/2005 -- Neptune's ring arcs 01/08/2005 -- The Hercules cluster and supercluster 01/07/2005 -- The globular cluster M4 01/06/2005 -- The Crab pulsar and nebula 01/05/2005 -- An extra-solar planet 01/04/2005 -- A close-up of Eros 01/03/2005 -- The Merope Nebula 01/02/2005 -- Our moon and Io 01/01/2005 -- Observing the skies in January 12/31/2004 -- Sunlit features on the moon 12/30/2004 -- The Dog Star 12/29/2004 -- A glowing emission nebula 12/28/2004 -- Arachnoids on Venus 12/27/2004 -- The Sun's closest planetary neighbors 12/26/2004 -- The Pleiades star cluster 12/25/2004 -- The Christmas Tree Cluster 12/24/2004 -- First humans in space 12/23/2004 -- A glowing sun pillar 12/22/2004 -- Saturn's moon Phoebe 12/21/2004 -- Winter is here 12/20/2004 -- A rare alignment of Jupiter's moons 12/19/2004 -- The active planet Uranus 12/18/2004 -- Saturn's moon Enceladus 12/17/2004 -- Saturn's moon Dione 12/16/2004 -- Planet Saturn on the rise 12/15/2004 -- Venera 7 spacecraft and Venus 12/14/2004 -- The weather on Jupiter 12/13/2004 -- The Geminids meteor shower peaks 12/12/2004 -- The spiral galaxies of M51 12/11/2004 -- Observing "under" the new moon 12/10/2004 -- The fastest winds in the solar system 12/09/2004 -- Rigel in the constellation Orion 12/08/2004 -- A solar-powered lunar probe, SMART1 12/07/2004 -- Up close with comet Halley's nucleus 12/06/2004 -- A Jupiter occultation 12/05/2004 -- Taurus, Aldebaran and the Hyades 12/04/2004 -- The moon's journey around the Earth 12/03/2004 -- The elliptical galaxy Centaurus A 12/02/2004 -- Observing the sun 12/01/2004 -- A galaxy's central core 11/30/2004 -- The Horsehead Nebula 11/29/2004 -- Eclipses then and now 11/28/2004 -- The bright star Capella 11/27/2004 -- Our Sun's trip around the Milky Way 11/26/2004 -- The largest moon in the solar system 11/25/2004 -- Orion's belt on the rise 11/24/2004 -- Water and Earth 11/23/2004 -- Seyfert's sextet of galaxies 11/22/2004 -- Double stars in Aries 11/21/2004 -- Amazing features of Mars 11/20/2004 -- Birth date of Edwin Hubble 11/19/2004 -- Naming Mercury's craters 11/18/2004 -- Astronomy in the city 11/17/2004 -- Mira, the red giant 11/16/2004 -- A barred spiral galaxy 11/15/2004 -- The last impact on the moon 11/14/2004 -- Adaptive optics and Neptune 11/13/2004 -- Cassini-Huygens takes a look at Hyperion 11/12/2004 -- Mission extensions for Spirit and Opportunity 11/11/2004 -- Observing Pluto and Charon 11/10/2004 -- The distant and powerful quasars 11/09/2004 -- Our sister planet, Venus 11/08/2004 -- Birth date of Edmund Halley 11/07/2004 -- A planetary nebula in M15 11/06/2004 -- Aurora Borealis 11/05/2004 -- Our spinning planets 11/04/2004 -- Lava pancakes on Venus 11/03/2004 -- Conjunction of Venus and Jupiter 11/02/2004 -- The Andromeda galaxy 11/01/2004 -- Constellations in the autumn sky 10/31/2004 -- The Tarantula Nebula 10/23/2004 -- Open star cluster NGC 752 10/22/2004 -- Volcanically active Io 10/21/2004 -- Peak of the Orionid Meteor Shower 10/20/2004 -- Autumn skies welcome the Pleiades star cluster 10/19/2004 -- The quadruple star system Trapezium 10/18/2004 -- Jupiter's and Saturn's rings 10/17/2004 -- Brocchi's "Cluster" 10/16/2004 -- Classes of asteroids 10/15/2004 -- NASA's Prometheus Jupiter Icy Moons Orbiter (JIMO) 10/14/2004 -- The moon's surface 10/13/2004 -- Three planets up in pre-dawn skies 10/12/2004 -- The open cluster NGC 6530 10/11/2004 -- The bright Lagoon Nebula 10/10/2004 -- The Sunspot cycle 10/09/2004 -- Saturn's moon Dione 10/08/2004 -- The giant blue planets 10/07/2004 -- Planetary nebula NGC 246 10/06/2004 -- What's a meteor? 10/05/2004 -- The naming of stars 10/04/2004 -- Sputnik 1 launch 10/03/2004 -- Granules and bubbles on the Sun 10/02/2004 -- Orion on the rise 10/01/2004 -- The Cat's Paw Nebula 09/30/2004 -- Twinkle, twinkle little stars 09/29/2004 -- Craters on Mercury 09/28/2004 -- The Harvest Moon 09/27/2004 -- Stars in the Great Square 09/26/2004 -- Hurricane Charley from space 09/25/2004 -- The Double Cluster in Autumn skies 09/24/2004 -- Cepheid variable stars 09/23/2004 -- Discovery of planet Neptune 09/22/2004 -- Autumn is here 09/21/2004 -- Asteroids and the back yard astronomer 09/20/2004 -- The Hubble Ultra Deep Field of galaxies 09/19/2004 -- The bright planet Venus 09/18/2004 -- New planet discovery 09/17/2004 -- Autumn and Fomalhaut 09/16/2004 -- The Dumbbell Nebula 09/15/2004 -- Lightning and Earth's upper atmosphere 09/14/2004 -- The Gum Nebula 09/13/2004 -- A complete rotation of Mars 09/12/2004 -- Globular star cluster M2 09/11/2004 -- Mercury in the night sky 09/10/2004 -- Seasons on Earth 09/09/2004 -- Two new moons for Saturn 09/08/2004 -- Recent travels of Mars's Opportunity 09/07/2004 -- Comets: what's in a name 09/06/2004 -- The magnitude of celestial objects 09/05/2004 -- The Big Dipper as celestial guide 09/04/2004 -- Taking advantage of an occultation 09/03/2004 -- SOFIA-the airborne observatory 09/02/2004 -- The Helix Nebula 09/01/2004 -- Uranus at opposition 08/31/2004 -- Artificial and natural satellites 08/30/2004 -- Viewing our moon 08/29/2004 -- The ecliptic plane 08/28/2004 -- The double star Albireo 08/27/2004 -- Viewing Jupiter and it satellites 08/26/2004 -- The moon and Venus by day 08/25/2004 -- In the dark in L.A. 08/24/2004 -- Our galaxy's twin 08/23/2004 -- The back of the moon 08/22/2004 -- The unique-looking galaxy, Hoag's Object 08/21/2004 -- Mariner then, Messenger now 08/20/2004 -- Anniversary of Voyager 2 08/19/2004 -- The Andromeda Galaxy 08/18/2004 -- The Butterfly Cluster 08/17/2004 -- The heavily cratered Phobos 08/16/2004 -- The hazy moon Titan 08/15/2004 -- The Double-Double star system in Lyra 08/14/2004 -- The Dumbbell Nebula 08/13/2004 -- The Fox Fur Nebula 08/12/2004 -- Space and nebulae 08/11/2004 -- The Perseid Meteor Shower 08/10/2004 -- The Cygnus Loop 08/09/2004 -- John William Draper 08/08/2004 -- The Teapot asterism 08/07/2004 -- The moon's libration 08/06/2004 -- Globular cluster M3 08/05/2004 -- Birth date of Neil Armstrong 08/04/2004 -- A dwarf irregular galaxy 08/03/2004 -- Saturn's A Ring 08/02/2004 -- Earth's Meteor Crater 08/01/2004 -- Mars rover reaches Columbia Hills 07/31/2004 -- The grouping of stars 07/30/2004 -- First discovery of extra-solar planets 07/29/2004 -- Eisenhower and NASA 07/28/2004 -- Our Milky Way galaxy 07/27/2004 -- Space between the asteroids 07/26/2004 -- The moon's crater Tycho 07/25/2004 -- The constellation Ophiuchus 07/24/2004 -- Saturn's moon Phoebe 07/23/2004 -- Saturn's largest moon 07/22/2004 -- Saturn's rings 07/21/2004 -- Science objectives of the Cassini-Huygens mission 07/20/2004 -- Two 17th century European astronomers 07/19/2004 -- The Huygens probe 07/18/2004 -- Cassini-Huygens spacecraft 07/17/2004 -- The distant object Sedna 07/16/2004 -- 10th anniversary of Comet Shoemaker-Levy 9 crash 07/15/2004 -- The Summer's swan, Cygnus 07/14/2004 -- Anniversary of the Mariner 4 spacecraft 07/13/2004 -- The atmosphere on Mars 07/12/2004 -- Our slowing Sun 07/11/2004 -- Scorpius and Antares 07/10/2004 -- An aerial view of Olympus Mons 07/09/2004 -- The Kuiper Belt 07/08/2004 -- Gases and atmosphere 07/07/2004 -- An annular solar eclipse 07/06/2004 -- The asteroid and the dinosaurs 07/05/2004 -- Jupiter's rings 07/04/2004 -- The Firework Nebula 07/03/2004 -- NGC 5128 07/02/2004 -- The Grand Design spiral galaxy 07/01/2004 -- Stars and galaxies of the universe 06/30/2004 -- The Tunguska explosion 06/29/2004 -- The magnificent M22 06/28/2004 -- Sagittarius the archer 06/27/2004 -- Venus transit 2004 06/26/2004 -- The Earth's wobble 06/25/2004 -- The constellation Draco the dragon 06/24/2004 -- The spectacular M3 06/23/2004 -- The birth of modern astronomy 06/22/2004 -- Pluto's moon Charon 06/21/2004 -- A radio wave sun 06/20/2004 -- Summer Solstice 06/19/2004 -- Our galaxy's Cygnus Rift 06/18/2004 -- Anniversary of first woman in space 06/17/2004 -- Spring on Neptune 06/16/2004 -- The rise of the summer triangle 06/15/2004 -- Sheets of debris from M49 06/14/2004 -- The moon's crater Copernicus 06/13/2004 -- Anniversary of Pioneer 10 06/12/2004 -- Globular star cluster M13 06/11/2004 -- Launch of the Kepler mission 06/10/2004 -- A month without the moon 06/09/2004 -- The colors of the moon 06/08/2004 -- A different view of a meteor shower 06/07/2004 -- The Venus transit 06/06/2004 -- Mountains of our solar system 06/05/2004 -- Comets NEAT and LINEAR 06/04/2004 -- Dust storms on Mars 06/03/2004 -- First American to perform a space walk 06/02/2004 -- Our Sun, the nuclear reactor 06/01/2004 -- The Earth's atmosphere 05/31/2004 -- The Northern Crown in the evening sky 05/30/2004 -- The rings of Jupiter 05/29/2004 -- The asteroid Icarus 05/28/2004 -- The establishment of Lowell Observatory 05/27/2004 -- Uranus's moon Miranda 05/26/2004 -- The unique surface of Titan 05/25/2004 -- One of our solar system's smallest moons 05/24/2004 -- The densest planets in the solar system 05/23/2004 -- Magnetic activity on stars 05/15/2004 -- The amazing Bubble Nebula 05/14/2004 -- The launching of Skylab in 1973 05/13/2004 -- Spiral galaxy M100 05/12/2004 -- Seasons on Mars 05/11/2004 -- Our solar system and its galaxy 05/10/2004 -- The closest known star to our Sun 05/09/2004 -- The line on the moon 05/08/2004 -- Matter and Gravity 05/07/2004 -- Mars's rover Opportunity and a Martian Rock 05/06/2004 -- Open Star Cluster M7 05/05/2004 -- The First American in Space 05/04/2004 -- Gravitational Forces on Io 05/03/2004 -- Pluto's Unique Orbit 05/02/2004 -- Sombrero Galaxy 05/01/2004 -- The discovery of Neptune's moon Nereid 04/30/2004 -- The cold and unusual Triton 04/29/2004 -- The moon when it quakes 04/28/2004 -- The Omega Centauri star cluster 04/27/2004 -- The Sun and hot plasma 04/26/2004 -- The vastness of space 04/25/2004 -- The lunar soil 04/24/2004 -- National Astronomy Day 04/23/2004 -- Venus's day and year 04/22/2004 -- Neptune's rapidly changing atmosphere 04/21/2004 -- Peak of the Lyrid Meteor shower 04/20/2004 -- The Virgo Cluster of galaxies 04/19/2004 -- Once in a blue moon 04/18/2004 -- Jupiter's ring system discovery 04/17/2004 -- The center of our galaxy 04/16/2004 -- Planetary nebula IC 4406 04/15/2004 -- Our visible solar system 04/14/2004 -- Saturn edge on 04/13/2004 -- The Apollo 13 disaster 04/12/2004 -- The first human in space 04/11/2004 -- The constellation Hydra 04/10/2004 -- Mountain ranges on the Moon 04/09/2004 -- A unique view of Saturn 04/08/2004 -- A crescent Earth 04/07/2004 -- Evidence of water on Mars 04/06/2004 -- The Leo Triplet of galaxies 04/05/2004 -- The Compton Gamma Ray Observatory 04/04/2004 -- Daylight Savings Time 04/03/2004 -- Messenger spacecraft's May departure 04/02/2004 -- The large moon Ganymede 04/01/2004 -- The star Gliese 710 03/31/2004 -- The Jewel Box cluster of stars 03/30/2004 -- The dark Coalsack nebula 03/29/2004 -- The spacecraft Mariner 10 and Mercury 03/28/2004 -- The asteroid Pallas 03/27/2004 -- One year anniversary of meteor explosion 03/26/2004 -- The Lion welcomes spring 03/25/2004 -- Discovery date of Titan 03/24/2004 -- The James Webb Space Telescope 03/23/2004 -- A breathtaking crescent Uranus 03/22/2004 -- The history of volcanism 03/21/2004 -- Our colorful planets 03/20/2004 -- The Whale galaxy 03/19/2004 -- The 1971 Apollo 15 mission to the moon 03/18/2004 -- Anniversary of first space walk 03/17/2004 -- The hottest white dwarf star 03/16/2004 -- Anniversary of Goddard's rocket launch 03/15/2004 -- The moon at perigee and apogee 03/14/2004 -- Asteroids and their orbits 03/13/2004 -- The history of our moon 03/12/2004 -- The brilliant star Arcturus 03/11/2004 -- The blue nature of reflection nebulae 03/10/2004 -- Anniversary of the discovery of Uranus's rings 03/09/2004 -- Stardust Spacecraft meets Comet Wild 2 03/08/2004 -- The Spirit Rover's robotic arm 03/07/2004 -- Radar mapping on Venus 03/06/2004 -- Jupiter's many moons 03/05/2004 -- Mars under a microscope 03/04/2004 -- Jupiter at opposition 03/03/2004 -- An uncertain future for Hubble 03/02/2004 -- The Beehive Cluster 03/01/2004 -- A comet's tails 02/29/2004 -- Leap Year Day 02/28/2004 -- Inside the Tarantula Nebula 02/27/2004 -- First performance of Holst's "The Planets" 02/26/2004 -- The nature of pulsars 02/25/2004 -- The Mars Opportunity Rover 02/24/2004 -- Our solar system's planets 02/23/2004 -- Venus and a crescent moon 02/22/2004 -- A supernova explosion 02/21/2004 -- The sizes of stars 02/20/2004 -- The closest known star to our Sun 02/19/2004 -- Birth date of Nicolaus Copernicus 02/18/2004 -- Anniversary of the discovery of Planet Pluto 02/17/2004 -- The Sunflower Galaxy 02/16/2004 -- New and old galaxies 02/15/2004 -- Our solar system's light 02/14/2004 -- A symbol of love on Mars? 02/13/2004 -- Saturn's moon Enceladus 02/12/2004 -- First planetary nebula to be discovered 02/11/2004 -- A comet's two tails 02/10/2004 -- A windy Neptune 02/09/2004 -- The moons of Mars 02/08/2004 -- The Sun, our Solar System, and the Milky Way 02/07/2004 -- Aurora Borealis and Aurora Australis 02/06/2004 -- The solar wind 02/05/2004 -- The composition of an atmosphere and sky color 02/04/2004 -- Jupiter's Great Red Spot 02/03/2004 -- Open Star Cluster M11 02/02/2004 -- The Large Magellanic Cloud 02/01/2004 -- One-year Anniversary of Shuttle Columbia disaster 01/31/2004 -- Sun at 27 million degrees Fahrenheit 01/30/2004 -- AE Aurigae and Flaming Star Nebula 01/29/2004 -- Astronomer Nicolas Louis de Lacaille 01/28/2004 -- Mars Spirit Rover probes ancient lakebed? 01/27/2004 -- Tribute to Apollo 1 crew 01/26/2004 -- Neptune's moon Triton 01/25/2004 -- Aurora and Manicougan impact crater 01/24/2004 -- Sound waves and space 01/23/2004 -- The Big Dipper's star Mizar 01/22/2004 -- Temperature variations on Mercury 01/21/2004 -- Why stars twinkle 01/20/2004 -- Reflection nebula NGC 1977 01/19/2004 -- Mars Exploration Rover, Spirit 01/18/2004 -- Jupiter's satellite Thebe 01/17/2004 -- The asterism, the "W", in Cassiopeia 01/16/2004 -- From supermassive star to black hole 01/15/2004 -- The ancient science of astronomy 01/14/2004 -- The Small Sagittarius Starcloud 01/13/2004 -- Naming features on the moon 01/12/2004 -- First woman to discover a comet 01/11/2004 -- William Herschel's discoveries 01/10/2004 -- A moonhalo 01/09/2004 -- Uranus' dark moon Umbriel 01/08/2004 -- The Yucatan Peninsula Crater 01/07/2004 -- The Elephant Trunk Nebula 01/06/2004 -- Five year anniversary of Lunar Prospector launch 01/05/2004 -- The month and the lunar cycle 01/04/2004 -- Quandrantids meteor shower peaks tonight 01/03/2004 -- Scheduled landing date for Spirit on Mars 01/02/2004 -- Stardust spacecraft chases a comet 01/01/2004 -- First asteroid discovered in 1801 12/31/2003 -- Collisions in space 12/30/2003 -- The striking Ring Nebula 12/29/2003 -- Spider webs on Venus? 12/28/2003 -- The bright binary star system, Capella 12/27/2003 -- The heavily cratered planet Mercury 12/26/2003 -- The Coma cluster of galaxies 12/25/2003 -- The 30 Doradus Nebula 12/24/2003 -- Anniversary of Apollo 8 12/23/2003 -- The lunar cycle, lunation 12/22/2003 -- First day of winter 12/21/2003 -- Saturn's spectacular rings 12/20/2003 -- A long jet from an embryonic star 12/19/2003 -- Comet Halley's nucleus up close 12/18/2003 -- The oldest cratered body in the solar system 12/17/2003 -- The California Nebula 12/16/2003 -- Birth date of Arthur C. Clarke 12/15/2003 -- The Orion Nebula 12/14/2003 -- Winter welcomes Orion to the skies 12/13/2003 -- Peak of the Geminid Meteor Shower 12/12/2003 -- New discovery in a distant galaxy 12/11/2003 -- The last planned mission to the moon 12/10/2003 -- First sighting of Neptune 12/09/2003 -- Coronal loops on the Sun 12/08/2003 -- Pluto's and Charon's synchronicity 12/07/2003 -- A crater chain on Ganymede 12/06/2003 -- The variable star, Mira Ceti 12/05/2003 -- Our colorful Moon 12/04/2003 -- Winter's constellations and stars 12/03/2003 -- The anniversary of Pioneer 10's Jupiter flyby 12/02/2003 -- The open star cluster, the Hyades 12/01/2003 -- The constellation Taurus, The Bull 11/30/2003 -- The Sculptor Group of galaxies 11/29/2003 -- Io's volcanic plumes 11/28/2003 -- The solar system's leftovers: asteroids 11/27/2003 -- The Sun's rotation 11/26/2003 -- The VLA radio telescopes 11/25/2003 -- A waxing crescent moon and Venus 11/24/2003 -- Why the moon becomes full 11/23/2003 -- Venus's Dickinson crater 11/22/2003 -- Satellites surrounding planet Earth 11/21/2003 -- An accretion disk 11/20/2003 -- Earth's shadow in evening skies 11/19/2003 -- Our neighbor,Venus 11/18/2003 -- Mars, olivine and water 11/17/2003 -- Aurorae on Saturn 11/16/2003 -- A show of auroral storms 11/15/2003 -- A very long lunar valley 11/14/2003 -- The star Eta Carinae 11/13/2003 -- The great star Betelgeuse 11/12/2003 -- Voyager I's 1980 Saturn flyby 11/11/2003 -- The Andromeda Galaxy high in the eastern sky 11/10/2003 -- A discovery in the Kuiper Belt 11/09/2003 -- Birth date of Carl Sagan 11/08/2003 -- Total lunar eclipse tonight 11/07/2003 -- The sky around the star Deneb 11/06/2003 -- The Summer Triangle dipping toward the horizon 11/05/2003 -- Nearby spiral galaxies M101 and M51 11/04/2003 -- The Ant Nebula 11/03/2003 -- Pleiades on the rise 11/02/2003 -- China's first manned space station 11/01/2003 -- A storm as wide as Earth 10/31/2003 -- The Ghost Head Nebula 10/30/2003 -- Mars still shining bright 10/29/2003 -- John Glenn's return to space 10/28/2003 -- 3-D Mars 10/27/2003 -- An asteroid and her moon 10/26/2003 -- The tilt of planet Uranus 10/25/2003 -- Collisions and the Blue Stragglers 10/24/2003 -- Standing in the shadow of Phobos 10/23/2003 -- Ida and her moon Dactyl 10/22/2003 -- The Moon's Aristarchus Plateau 10/21/2003 -- Peak of the Orionid Meteor Shower 10/20/2003 -- The bright Southern Pinwheel Galaxy 10/19/2003 -- Our galaxy's largest globular cluster 10/18/2003 -- Io's volcano Pele 10/17/2003 -- The biggest moon of all 10/16/2003 -- The oldest known planet? 10/15/2003 -- Two new moons for Uranus 10/14/2003 -- Anniversary of first supersonic flight 10/13/2003 -- A naked-eye comet 10/12/2003 -- The end of Galileo 10/11/2003 -- Anniversary of the first manned Apollo flight 10/10/2003 -- Lighting up the Flame Nebula 10/09/2003 -- An annular solar eclipse 10/08/2003 -- Edwin Hubble's great discovery 10/07/2003 -- Rings around the planet 10/06/2003 -- The rim of the Cartwheel Galaxy 10/05/2003 -- Star cluster h and Chi Persei 10/04/2003 -- Anniversary of the launching of Sputnik 10/03/2003 -- The Earth as an apple 10/02/2003 -- Turning lights on with a distant star 10/01/2003 -- Jupiter's bulging "waistline" 09/30/2003 -- The remains of Tycho's Supernova 09/29/2003 -- Our moon and Io 09/28/2003 -- Life in Venus's atmosphere? 09/27/2003 -- The center of our galaxy 09/26/2003 -- Mars on the rise 09/25/2003 -- The Snake Nebula 09/24/2003 -- Jupiter's "new" moons 09/23/2003 -- The discovery of Neptune 09/22/2003 -- The constellation Cassiopeia 09/21/2003 -- Inside lunar soil 09/20/2003 -- The end of stars 09/19/2003 -- Discovery of Venus's atmosphere 09/18/2003 -- The swirling clouds of Jupiter 09/17/2003 -- An infrared telescope in space 09/16/2003 -- The luminous Pistol Star 09/15/2003 -- The surface of Mercury 09/14/2003 -- Russian probe Luna 2 09/13/2003 -- Extreme temperatures on the Moon 09/12/2003 -- The bright North Star 09/11/2003 -- Colliding galaxies: The Mice 09/10/2003 -- The Harvest Moon 09/09/2003 -- Quakes on the Sun 09/08/2003 -- The Moon and Mars: a glowing pair 09/07/2003 -- The Great Square of Pegasus 09/06/2003 -- A Martian crater engulfed by lava 09/05/2003 -- Spirit and Opportunity on their way to Mars 09/04/2003 -- Sand dunes on a crater floor 09/03/2003 -- Spacecraft currently on their way to Mars 09/02/2003 -- A mountainside on Mars 09/01/2003 -- The great canyon on Mars 08/31/2003 -- Why Mars is close to Earth now 08/30/2003 -- Martian geology 08/29/2003 -- The hemispheres of Mars 08/28/2003 -- Mars's polar caps 08/27/2003 -- The weather on Mars 08/26/2003 -- The atmosphere on Mars 08/25/2003 -- Mars and Earth 08/24/2003 -- The Mars opposition 08/23/2003 -- Titania, Uranus's largest satellite 08/22/2003 -- The multiple star system Trapezium 08/21/2003 -- Mars's Syrtis Major 08/20/2003 -- The North American Nebula 08/19/2003 -- The double star Albireo 08/18/2003 -- The Stingray planetary nebula 08/17/2003 -- Cygnus, the Swan, high in the sky 08/16/2003 -- Pluto's orbit in Earth years 08/15/2003 -- A sunrise in the west (on Venus) 08/14/2003 -- The planet that orbits two stars 08/13/2003 -- Dark spots on Neptune 08/12/2003 -- The study of geology on Mars 08/11/2003 -- Moisture regions on Mars 08/10/2003 -- The far side of the Moon 08/09/2003 -- Saturn's "ring" span 08/08/2003 -- Losing weight on the Moon 08/07/2003 -- The galilean moons of Jupiter 08/06/2003 -- Our Sun's signature 08/05/2003 -- Meteor impacts in Earth's waters 08/04/2003 -- Twinkle, twinkle, little stars 08/03/2003 -- Our galactic neighbor - the Sagittarius dwarf 08/02/2003 -- Planet formation around AB Aurigae? 08/01/2003 -- Birth date of Maria Mitchell 07/31/2003 -- A gas bubble in the Universe 07/30/2003 -- The beautiful Cygnus Loop 07/29/2003 -- Shooting stars in the current night sky 07/28/2003 -- A near-earth asteroid's close approach 07/27/2003 -- The southern Ring nebula 07/26/2003 -- The familiar faces of nebulae 07/25/2003 -- Jupiter and Mercury in the night sky 07/24/2003 -- Behavior of gases and black holes 07/23/2003 -- The discovery of Jupiter's rings 07/22/2003 -- Venus unveiled 07/21/2003 -- The rung galaxy, Hoag's Object 07/20/2003 -- Anniversary of Viking 1 Lander touchdown on Mars 07/19/2003 -- Debris from Io's volcano Tvashtar 07/18/2003 -- The dark Snake Nebula 07/17/2003 -- Earth and the CHON chemicals 07/16/2003 -- Stars in early formation - protostars 07/15/2003 -- Birthday of Jocelyn Bell Burnell 07/14/2003 -- A warped galaxy 07/13/2003 -- NASA's Spirit spacecraft 07/12/2003 -- The brightness of stars and the Bayer System 07/11/2003 -- Ancient riverbeds on Mars 07/10/2003 -- Galaxies: clusters and superclusters 07/09/2003 -- The Summer Triangle 07/08/2003 -- Season changes on Neptune 07/07/2003 -- Asteroids and the main belt 07/06/2003 -- Baily's beads during a solar eclipse 07/05/2003 -- Saturn's moon Rhea 07/04/2003 -- The magnificent Crab Nebula 07/03/2003 -- Comet Hale-Bopp 07/02/2003 -- The spin on planets 07/01/2003 -- When spiral galaxies collide 06/30/2003 -- Anniversary of the Tunguska event 06/29/2003 -- M57 and IC 1296 together 06/28/2003 -- The open vs. closed universe 06/27/2003 -- June Bootid meteor shower 06/26/2003 -- Birthdate of Charles Messier 06/25/2003 -- The Earth's poles 06/24/2003 -- First Asian American in space 06/23/2003 -- Phases of the moon 06/22/2003 -- Anniversary of the discovery of Charon 06/21/2003 -- Spacecraft and the laws of physics 06/20/2003 -- The Earth and moon from Mars 06/19/2003 -- Mars and the moon together in the night sky 06/18/2003 -- Anniversary of first American woman in space 06/17/2003 -- Similarities of Earth and Mars 06/16/2003 -- Anniversary of first woman in space 06/15/2003 -- Points of light in the night sky 06/14/2003 -- Globular star cluster M55 06/13/2003 -- Our galaxy's starry halo 06/12/2003 -- Solar eclipses: from Zimbabwe to Antarctica 06/11/2003 -- Jupiter as a crescent 06/10/2003 -- Binary stars Mizar and Alcor 06/09/2003 -- Venus and Mercury visible in the night sky 06/08/2003 -- Birth date of Giovanni Cassini 06/07/2003 -- The Cone Nebula and newborn stars 06/06/2003 -- A total lunar eclipse 06/05/2003 -- Slowly rearranging the lunar surface 06/04/2003 -- A red supergiant in Hercules 06/03/2003 -- Anniversary of the first American space-walk 06/02/2003 -- The moon's shadow on Earth 06/01/2003 -- Saturn and the moon after sunset 05/31/2003 -- Light and dark on Iapetus 05/30/2003 -- Uranus' 98 degree tilt 05/29/2003 -- Pink skies over Mars 05/28/2003 -- Space debris in Chicago 05/27/2003 -- Gliese 623b: one of the smallest stars known 05/26/2003 -- Asteroid named for Mister Rogers 05/25/2003 -- Hubble shoots the Andromeda Galaxy 05/24/2003 -- NASA's GALEX spacecraft 05/23/2003 -- The colorful Io 05/22/2003 -- Mars meteorites in Antarctica 05/21/2003 -- The Earth as a "flatfield" source 05/20/2003 -- The bright star Spica 05/19/2003 -- Extra-solar planets 05/18/2003 -- A galaxy like ours 05/17/2003 -- Birthday of Joseph Lockyer 05/16/2003 -- What the universe is made of 05/15/2003 -- Total Lunar Eclipse today 05/14/2003 -- 30 years since Skylab 05/13/2003 -- Jupiter's newest moons 05/12/2003 -- The Sun's rotation 05/11/2003 -- Aurora Australis - the Southern Lights 05/10/2003 -- The Sombrero Galaxy, M104 05/09/2003 -- Meteors and space dust 05/08/2003 -- Uranus, Jupiter, and ammonia gas 05/07/2003 -- Globular star cluster M13 05/06/2003 -- Planet Mercury transits the Sun 05/03/2003 -- Earthshine on the moon 05/02/2003 -- Earth's protective atmosphere 05/01/2003 -- The beautiful Ant Nebula 04/30/2003 -- Asteroid Mathilde and her large craters 04/29/2003 -- The Virgo Cluster of galaxies 04/28/2003 -- Three spiral galaxies in Leo 04/27/2003 -- Water vapor in Earth's troposphere 04/26/2003 -- Light and gravity 04/25/2003 -- Anniversary of Hubble deployment 04/24/2003 -- A huge gamma ray burst 04/23/2003 -- The polarized Egg Nebula 04/22/2003 -- Earth Day, 2003 04/21/2003 -- Lyrid meteor shower peaks tonight 04/20/2003 -- Death throes of a star 04/19/2003 -- The discovery of C02 on Ariel 04/18/2003 -- Atmosphere and the size of a planet 04/17/2003 -- A "light echo" from a star 04/16/2003 -- An elongated planetary nebula 04/15/2003 -- 15 At the center of a star cluster 04/14/2003 -- The red giant star, Arcturus 04/13/2003 -- A supernova remnant 04/12/2003 -- Anniversary of first human in space 04/11/2003 -- Jupiter's core of solid rock 04/10/2003 -- A very hot Mercury 04/09/2003 -- Mars' Phobos and Deimos 04/08/2003 -- Earth on the moon 04/07/2003 -- Asteroid Vesta in Virgo 04/06/2003 -- Daylight Saving Time 04/05/2003 -- The moon is on the move 04/04/2003 -- A pulsar and the force of gravity 04/03/2003 -- Cryovolcanism in the outer solar system 04/02/2003 -- The Sun hums! 04/01/2003 -- The "Terminator" 03/31/2003 -- 31 Venus and Mercury: morning and evening stars 03/30/2003 -- Blobs of gas in the Helix Nebula 03/29/2003 -- Tycho's star 03/28/2003 -- A perspective on stars 03/27/2003 -- Our moon colored red 03/26/2003 -- Lava on Venus 03/25/2003 -- Anniversary of Titan's discovery 03/24/2003 -- Our moon's geology 03/23/2003 -- Refractor and reflector telescopes 03/22/2003 -- Sand dunes on Mars 03/21/2003 -- Three galaxies on a southern night 03/20/2003 -- First day of spring 03/19/2003 -- The gegenschein-sunlight and dust 03/18/2003 -- A dog and Mars 03/17/2003 -- A galactic year 03/16/2003 -- Triton's retrograde orbit 03/15/2003 -- Saturn and its moons, Tethys and Dione 03/14/2003 -- The mysterious Mathilde 03/13/2003 -- Birth date of Percival Lowell 03/12/2003 -- Star clusters M46 and M47 03/11/2003 -- Light years as unit of measure 03/10/2003 -- Binoculars and the night sky 03/09/2003 -- Salty ocean on Callisto? 03/08/2003 -- A crescent Earth 03/07/2003 -- Birth date of John Herschel 03/06/2003 -- Gomez's Hamburger 03/05/2003 -- Lion on the rise 03/04/2003 -- The passage of time and astronomy 03/03/2003 -- Open star cluster, M41 03/02/2003 -- Microwave light of the Universe 03/01/2003 -- Solar flare and prominences 02/28/2003 -- Saturn's "Northern" Lights 02/27/2003 -- Studying climate change on Earth and Mars 02/26/2003 -- An icy crater on Europa 02/25/2003 -- Earth's Red Sea 02/24/2003 -- Mars on the rise 02/23/2003 -- Saturn's dazzling rings 02/22/2003 -- The Lagoon Nebula 02/21/2003 -- Messier objects 36, 37, & 38 02/20/2003 -- Anniversary of first American to orbit Earth 02/19/2003 -- Birthday of Nicolaus Copernicus 02/18/2003 -- Anniversary of Pluto's discovery 02/17/2003 -- Comet Borrelly's extreme seasons 02/16/2003 -- The Shuttle Columbia tragedy 02/15/2003 -- Is it Saturn or Uranus? 02/14/2003 -- Objects in Cancer the Crab 02/13/2003 -- The moon, big and small 02/12/2003 -- Seyfert's sextet of galaxies 02/11/2003 -- Our oceans, the atmosphere and Venus 02/10/2003 -- Europa - one of the brightest moons 02/09/2003 -- Organisms and extreme environments 02/08/2003 -- Stars at the Poles 02/07/2003 -- Five moons of Uranus 02/06/2003 -- A swarm of stars - M44 02/05/2003 -- Gobbling up the Magellanic Clouds 02/04/2003 -- Ring around the Milky Way 02/03/2003 -- A sonic boom from a meteor 02/02/2003 -- Jupiter at opposition tonight 02/01/2003 -- Reflection nebula in the Pleiades 01/31/2003 -- Naming stars 01/30/2003 -- Syzygy and the Earth, moon and sun 01/29/2003 -- Double star cluster, h and Chi Persei 01/28/2003 -- Edge-on view of the Needle Galaxy 01/27/2003 -- Betelgeuse, Betelgeuse, Betelgeuse 01/26/2003 -- The far side of the moon 01/25/2003 -- Three planets on the rise 01/24/2003 -- Comet Kudo-Fujikawa 01/23/2003 -- Canopus - second brightest star 01/22/2003 -- Jupiter's 40th moon discovered 01/21/2003 -- Mars and Antares 01/20/2003 -- No moons for Venus and Mercury 01/19/2003 -- Jupiter in the night sky 01/18/2003 -- Gemini on the rise 01/17/2003 -- The dazzling Pleiades star cluster 01/16/2003 -- The Orion Nebula 01/15/2003 -- Sirius: second only to the Sun 01/14/2003 -- The winter triangle 01/13/2003 -- Orion: dominant figure in January skies 01/12/2003 -- January-a great month for sky-watching 01/11/2003 -- The cliffs of Miranda 01/10/2003 -- Sirius, the dog star 01/09/2003 -- The sizes of stars 01/08/2003 -- Our moon vs. Mars' Phobos 01/07/2003 -- The Black Eye Nebula 01/06/2003 -- Io and Europa casting shadows 01/05/2003 -- Comets and planets 01/04/2003 -- The Horsehead Nebula 01/03/2003 -- Earth's orbit 01/02/2003 -- The history of NGC 3310 01/01/2003 -- A comet's tail 12/31/2002 -- The 7th planet 12/30/2002 -- Asteroids and our moon 12/29/2002 -- Ice geysers on Triton 12/28/2002 -- The north star now, and in the future 12/27/2002 -- Birth date of Johannes Kepler 12/26/2002 -- What is...a meteor, meteoroid, meteorite? 12/25/2002 -- Birth date of Isaac Newton 12/24/2002 -- Early application of the laser 12/23/2002 -- Free floating Phobos 12/22/2002 -- Light from M3 12/21/2002 -- The onset of winter 12/20/2002 -- Mapping Pluto and Charon 12/19/2002 -- Polluting Jupiter 12/18/2002 -- Viewing the Whirlpool Galaxy 12/17/2002 -- The Big Dipper in the night sky 12/16/2002 -- Mars' equatorial surface temperature 12/15/2002 -- Heating the solar system 12/14/2002 -- Temperature variations on Mercury 12/13/2002 -- Peak of the Geminid Meteor Shower 12/12/2002 -- The race to find Neptune 12/11/2002 -- Hot plasma and a loop on the Sun 12/10/2002 -- A hot spot on Venus 12/09/2002 -- A Geminid Meteor 12/08/2002 -- Neptune's moon Larissa 12/07/2002 -- The Little Ghost Nebula 12/06/2002 -- The nucleus and coma of a comet 12/05/2002 -- Saturn on the rise 12/04/2002 -- The planets: something in common 12/03/2002 -- Mercury's rotation 12/02/2002 -- Venus and Mars in the night sky 12/01/2002 -- SIRTF launch in January 11/30/2002 -- An x-ray image from space 11/29/2002 -- Galileo flyby of Amalthea 11/28/2002 -- 1,000 comets per human 11/27/2002 -- Cassini: destination Saturn 11/26/2002 -- Stars: absolute magnitude vs. apparent magnitude 11/25/2002 -- The fascinating galaxy, NGC 2787 11/24/2002 -- Light pollution - a view from space 11/23/2002 -- Close-up of the Cone Nebula 11/22/2002 -- M67 - as old as our Solar System 11/21/2002 -- An occultation of Saturn 11/20/2002 -- The International Astronomical Union 11/19/2002 -- A penumbral eclipse of the moon 11/18/2002 -- The Leonid Meteor Shower peaks 11/17/2002 -- Debris of Comet Tempel-Tuttle 11/16/2002 -- Mars in 1954 11/15/2002 -- Seeing our Solar System's mass 11/14/2002 -- The moon's leftovers 11/13/2002 -- Sunlight on the moon 11/12/2002 -- The Gum Nebula 11/11/2002 -- Jewels in the sky 11/10/2002 -- Ring around the Earth 11/09/2002 -- Mercury's 1999 transit 11/08/2002 -- Birth date of Edmund Halley 11/07/2002 -- The Sun's matter and mass 11/06/2002 -- A long winter on Uranus 11/05/2002 -- Swarms of Trojan asteroids 11/04/2002 -- Neptune's "blues" 11/03/2002 -- First living creature in space 11/02/2002 -- Jupiter compared to Earth 11/01/2002 -- A triple star system in Eridanus 10/31/2002 -- The Witch Head Nebula 10/30/2002 -- Cool Sunspots 10/29/2002 -- Radio galaxies 10/28/2002 -- The Ghost of Jupiter 10/27/2002 -- Open Star Cluster M37 10/26/2002 -- Jupiter's huge atmosphere 10/25/2002 -- The Whale's Head asterism 10/24/2002 -- Optical double stars 10/23/2002 -- The Seasat satellite 10/22/2002 -- The force of gravity on Earth 10/21/2002 -- An asteroid's orbit 10/20/2002 -- The symmetry of planetary nebulae 10/19/2002 -- The Bubble Nebula 10/18/2002 -- Our solar system's largest moon 10/17/2002 -- Open star cluster M103 10/16/2002 -- Subaru and the Pleiades 10/15/2002 -- Planet Saturn on the rise 10/14/2002 -- Anniversary of first supersonic flight 10/13/2002 -- The Owl Nebula 10/12/2002 -- The Kuiper Belt 10/11/2002 -- Globular Cluster, Omega Centauri 10/10/2002 -- The Crab nebula pulsar 10/09/2002 -- Plumes on Io 10/08/2002 -- Pleiades on the rise 10/07/2002 -- Planetary nebula NGC 7299 10/06/2002 -- The South Star, sigma Octantis 10/05/2002 -- Chaos on Europa 10/04/2002 -- Anniversary of Sputnik 1 10/03/2002 -- The spectacular Hoag's Object 10/02/2002 -- Nature's zoom lens 10/01/2002 -- The Mercurian crater Degas 09/30/2002 -- Callisto's cliff 09/29/2002 -- The death throes of stars 09/28/2002 -- Arachnoids on Venus 09/27/2002 -- Ganymede's scalloped valley 09/26/2002 -- A trip to Alpha Centauri 09/25/2002 -- An unstable white dwarf 09/24/2002 -- The atmosphere on Io 09/23/2002 -- Neptune discovered in 1846 09/22/2002 -- First day of Fall 09/21/2002 -- Valhalla, an impact crater 09/20/2002 -- Viewing Venus 09/19/2002 -- Jupiter-sized planets around other stars 09/18/2002 -- Tohil Mons, Io's great mountain 09/17/2002 -- Algol, an eclipsing binary 09/16/2002 -- The planets' atmospheres 09/15/2002 -- Moon rays 09/14/2002 -- Our blue sky 09/13/2002 -- Mira, the variable star 09/12/2002 -- Icy moons of Uranus and Saturn 09/11/2002 -- A Martian crater 09/10/2002 -- Olympus Mons and Arizona 09/09/2002 -- Saturn's moon Dione 09/08/2002 -- Fomalhaut low in the night sky 09/07/2002 -- Why do stars twinkle? 09/06/2002 -- Valles Marineris vs. the Grand Canyon 09/05/2002 -- Visits to Saturn's moon Tethys 09/04/2002 -- The Cat's Paw Nebula 09/03/2002 -- The distance from the Sun to the Earth 09/02/2002 -- The Trifid Nebula, M20 09/01/2002 -- That white band in the sky 08/31/2002 -- Saturn and Jupiter visible in early morning 08/30/2002 -- The Tarantula nebula 08/29/2002 -- The Sagittarius dwarf galaxy 08/28/2002 -- The constellation Lacerta, the lizard 08/27/2002 -- Comet LINEAR's jets 08/26/2002 -- SOHO and the Sun 08/25/2002 -- False color Moon 08/24/2002 -- The journey to Pluto 08/23/2002 -- Planetary nebula NGC 7009 08/22/2002 -- Planet Neptune on the rise 08/21/2002 -- The Andromeda Galaxy 08/20/2002 -- Tidal forces and the Moon 08/19/2002 -- Venus's highest mountains 08/18/2002 -- The Tunguska meteorite 08/17/2002 -- Open star clusters h and chi Persei 08/16/2002 -- A computer-simulated extrasolar planet 08/15/2002 -- Jupiter and its Galilean satellites 08/14/2002 -- The Local Group's M33 08/13/2002 -- The center of galaxy NGC 1569 08/12/2002 -- The dust pillars of the Eagle Nebula 08/11/2002 -- Peak of the Perseid meteor shower 08/10/2002 -- M2: a great target for binoculars 08/09/2002 -- The smallest constellation of the zodiac 08/08/2002 -- Geysers on Neptune's moon Triton 08/07/2002 -- Microscopic fossil life on Mars? 08/06/2002 -- An active irregular galaxy in the Local Group 08/05/2002 -- Irregular galaxy DDO 63 08/04/2002 -- Saturn's F ring 08/03/2002 -- Rho Ophiuchus region of the Milky Way 08/02/2002 -- Open star clusters in Auriga 08/01/2002 -- From debris to galaxy 07/31/2002 -- Planetary nebulae M27 and M57 07/30/2002 -- The atmosphere on Venus 07/29/2002 -- The most distant objects: quasars 07/28/2002 -- The double star epsilon Lyrae 07/27/2002 -- Southern Delta Aquarid meteor shower 07/26/2002 -- The constellation Camelopardalis 07/25/2002 -- Variable stars and their usefulness 07/24/2002 -- The Sun's outer atmosphere 07/23/2002 -- Mars's ionosphere 07/22/2002 -- The Great Square of Pegasus 07/21/2002 -- Asteroids and Earth 07/13/2002 -- Gas giant rings 07/12/2002 -- A super superbubble 07/11/2002 -- Cetus the Sea Monster and Ceres 07/10/2002 -- Comet tails and solar wind 07/09/2002 -- Galaxy M100 in the Virgo Cluster 07/08/2002 -- Soil on the Moon 07/07/2002 -- Venus in the current night sky 07/06/2002 -- The double star Albireo 07/05/2002 -- Planet Earth at aphelion 07/04/2002 -- An explosion and the Crab Nebula 07/03/2002 -- How many Earths does it take to reach the Moon? 07/02/2002 -- The asterism in Sagittarius 07/01/2002 -- Infrared image from a Martian canyon 06/30/2002 -- Sunrise from the Shuttle 06/29/2002 -- Constellation Cassiopeia rising 06/28/2002 -- Polaris, the North Star 06/27/2002 -- Viewing spiral galaxy M106 06/26/2002 -- Birth date of Charles Messier 06/25/2002 -- Arcturus lights up the 1933 World's Fair 06/24/2002 -- The Lagoon Nebula in Sagittarius 06/23/2002 -- Summer Triangle rising in the east 06/22/2002 -- Anniversary of the discovery of Charon, Pluto's moon 06/21/2002 -- Summer solstice 06/20/2002 -- The orbital motiopn of our Sun and solar system 06/19/2002 -- Resolving individual stars 06/18/2002 -- Anniversay of first American woman in space 06/17/2002 -- Determining the temperature of a celestial body 06/16/2002 -- Anniversary of forst woman in space 06/15/2002 -- Venus: the hottest planet in the solar system 06/14/2002 -- Bok globules 06/13/2002 -- The dinosaurs' asteroid 06/12/2002 -- A galaxy's arms lead rotation 06/11/2002 -- Time dilation 06/10/2002 -- Volcano on Venus 06/09/2002 -- Planetary Nebula NGC 2440 06/08/2002 -- Birth date of Giovanni Cassini 06/07/2002 -- Pluto at opposition 06/06/2002 -- The evaporating south polar cap of Mars 06/05/2002 -- A Martian impact crater 06/04/2002 -- Binary star system, Cor Caroli 06/03/2002 -- Saturn's narrow "F" ring 06/02/2002 -- Jupiter's icy moon Europa 06/01/2002 -- The dense planet Mercury 05/31/2002 -- The Sun's rotation 05/30/2002 -- New moons of Jupiter 05/29/2002 -- Close-up of Jupiter's moon Callisto 05/28/2002 -- Anniversary of the founding of Lowell Observatory 05/27/2002 -- Saturn from a ground telescope 05/26/2002 -- Martian desert landscape 05/25/2002 -- President Kennedy proposes manned Moon missions 05/24/2002 -- The constellation Scorpius 05/23/2002 -- Stellar novae 05/22/2002 -- The constellation Libra 05/21/2002 -- Radiation of solr energy 05/20/2002 -- The Moon's crater Tauruntius 05/19/2002 -- The unusual galaxy Centaurus A 05/18/2002 -- Your age on Neptune? 05/17/2002 -- Ancient Martian volcano Ceraunius Tholus 05/16/2002 -- The skies on Earth and Mars 05/15/2002 -- The planet Uranus 05/14/2002 -- Anniversary of Skylab launch 05/13/2002 -- Our Sun compared to Earth 05/12/2002 -- Our solar system and the Milky Way 05/11/2002 -- Blue stars and red stars 05/10/2002 -- The constellation Leo the Lion 05/09/2002 -- The zodiac and its 13th constellation 05/08/2002 -- The dark nebula Barnard 86 05/07/2002 -- The Sombrero Galaxy in Virgo 05/06/2002 -- Five planets align 05/05/2002 -- Anniversary of first American in space 05/04/2002 -- Peak of the eta Equarid meteor shower 05/03/2002 -- M67 star cluster 05/02/2002 -- Mercury's speed 05/01/2002 -- Stars in the Milky Way 04/30/2002 -- Rings around the planets 04/29/2002 -- Sound waves and space 04/28/2002 -- Earthshine in April and May 04/27/2002 -- The Martian mountain Olympus Mons 04/26/2002 -- Four planets in the evening sky 04/25/2002 -- Anniversay of the Hubble deployment 04/24/2002 -- The brightnesses of stars 04/23/2002 -- The appearance of planetary nebulae 04/22/2002 -- A solar eclipse 04/21/2002 -- Lyrid metoer shower 04/20/2002 -- Astronomy day 04/19/2002 -- The North star 04/18/2002 -- The distance between Earth and Moon 04/17/2002 -- Double stars 04/16/2002 -- Birth date of Wilbur Wright 04/15/2002 -- M3 currently in the night sky 04/14/2002 -- Birth date of Christiaan Huygens 04/13/2002 -- The edge of Saturn's rings 04/12/2002 -- First human in space 04/11/2002 -- Twisters and funnels in the Lagoon Nebula 04/10/2002 -- Colliding galaxies 04/09/2002 -- A star's spectrum 04/08/2002 -- Comet Ikeya-Zhang 04/07/2002 -- Daylight savings time 04/06/2002 -- Dust in our solar system 04/05/2002 -- Cloudy skies on Mars 04/04/2002 -- The constellation Monoceros and the Rosette Nebula 04/03/2002 -- Anniversary of Luna 10's orbit around Moon 04/02/2002 -- Ganymede's magnetic field 04/01/2002 -- Jupiter located in Gemini 03/31/2002 -- Spokes in Staurn's B ring 03/30/2002 -- Comet discoveries by two women 03/29/2002 -- Mariner 10 and Mercury 03/28/2002 -- Open star cluster M41 03/27/2002 -- Planet Venus's rotation 03/26/2002 -- The asteroid belt's Kirkwood gaps 03/25/2002 -- The size of Saturn's moon Titan 03/24/2002 -- Mars's south polar cap 03/23/2002 -- Birth date of Wernher von Braun 03/22/2002 -- A galactic year 03/21/2002 -- Uranus and interior heat 03/20/2002 -- Vernal equinox 03/19/2002 -- Our Moon and Saturn's moon Rhea 03/18/2002 -- Anniversary of first person to walk in space 03/17/2002 -- Sunset on Mars 03/16/2002 -- Giant telescope under consideration - the OWL 03/15/2002 -- Ice fragments of Saturn's rings 03/14/2002 -- Birth date of Albert Einstein 03/13/2002 -- Birth date of Percival Lowell 03/12/2002 -- Location of Voyager spacecraft 03/11/2002 -- Possible ocean on Jupiter's moon Europa 03/10/2002 -- Discovery anniversary of rings of Uranus 03/09/2002 -- The two tails of a comet 03/08/2002 -- Neptune's second largest moon, Proteus 03/07/2002 -- Birth date of John Herschel 03/06/2002 -- Birth date of Joseph Fraunhofer 03/05/2002 -- Photo of Mars Pathfinder lander on the Martian surface 03/0432002 -- Discovery picture of Jupiter's rings 03/03/2002 -- The surface of Mars 03/02/2002 -- Zodiacal light 03/01/2002 -- The Ptolemaic theory of the Universe 02/28/2002 -- Miles separating the moon from Earth 02/27/2002 -- The largest and longest constellation, Hydra 02/26/2002 -- Full Moon tonight at perigeee 02/25/2002 -- The Earth's wobble 02/24/2002 -- Jocelyn Bell and discovery of first pulsar 02/23/2002 -- Open star cluster M6 visible with binoculars 02/22/2002 -- Anniversary of a supernova 02/21/2002 -- Io's volcanic crater Tupan 02/20/2002 -- Moon passes in front of Saturn tonight 02/19/2002 -- Birth date of Nikolaus Copernicus 02/18/2002 -- Anniversary of the discovery of Pluto 02/17/2002 -- Earth's life-sustaining atmosphere 02/16/2002 -- Mars in the current night sky 02/15/2002 -- Birth date of Galileo Galilei 02/14/2002 -- Viewing the planet Venus 02/13/2002 -- The Moon's optical illusion 02/12/2002 -- NEAR Shoemaker spacecraft landing anniversary 02/11/2002 -- Open star cluster M44 currently visible 02/10/2002 -- The Saturn V Rrcket 02/09/2002 -- The space between the planets 02/08/2002 -- Saturn -- the least dense of our solar system's planets 02/07/2002 -- The Orion Nebula 02/06/2002 -- Jupiter's moon Io 02/05/2002 -- Discovery image of Caliban, a moon of Uranus 02/04/2002 -- Birth date of Clyde Tombaugh 02/03/2002 -- Spacecraft Luna 9 02/02/2002 -- The Sun and Ground Hog's day 02/01/2002 -- The constellation Leo, the Lion 01/31/2002 -- The launching of Explorer I 01/30/2002 -- The discovery of comet Hyakutake 01/29/2002 -- Jupiter's moon Io 01/28/2002 -- The solar wind 01/27/2002 -- The asteroid Ida and its moon Dactyl 01/26/2002 -- Jupiter very near the Moon tonight 01/25/2002 -- The constellation Orion and a trick to finding other objects01/24/2002 -- The Rosette Nebula 01/23/2002 -- Adaptive optics and Earth-bound telescopes 01/22/2002 -- The Ursa Major Association's Big Dipper 01/21/2002 -- First quarter moon 01/20/2002 -- The Moon's Mare Orientale 01/19/2002 -- Groups of galaxies 01/18/2002 -- The Moon and Mars in the sky tonight 01/17/2002 -- Sun-like star HD 82943 and the fate of planets 01/16/2002 -- Measuring the distance to stars 01/15/2002 -- The layers of planet Earth 01/14/2002 -- Planet Venus at superior conjunction 01/13/2002 -- Uranus's moon Miranda 01/12/2002 -- The power of quasars 01/11/2002 -- The Crab pulsar in the Crab nebula 01/10/2002 -- Earth's companion asteroids 01/09/2002 -- A comet's orbit 01/08/2002 -- Five largest moons of Uranus 01/07/2002 -- Galileo's discovery of three of Jupiter's moons 01/06/2002 -- Formation of the Moon 01/05/2002 -- Rilles (channels) on the Moon 01/04/2002 -- The speed of light 01/03/2002 -- The Quadrantid meteor shower 01/02/2002 -- The rotation of the Sun 01/01/2002 -- Anniversary of the discovery of the first asteroid 12/31/2001 -- Jupiter at opposition 12/30/2001 -- Four planets on the rise 12/29/2001 -- Sunspots: cause and comparative size to Earth 12/28/2001 -- A lunar eclipse 12/27/2001 -- The Moon occults Saturn tonight 12/26/2001 -- The star Rigel's location and brightness 12/25/2001 -- What is a star? 12/24/2001 -- Distance of the Andromeda Galaxy 12/23/2001 -- Isaac Newton and the reflecting telescope 12/22/2001 -- Star cluster in the Large Magellanic Cloud 12/21/2001 -- Winter Solstice 12/20/2001 -- The Stingray Nebula 12/19/2001 -- Mars and its volcano Olympus Mons 12/18/2001 -- Mercury's orbit and the theory of General Relativity 12/17/2001 -- Relative size of the Moon and the Sun 12/16/2001 -- Distance and orbit of Pluto 12/15/2001 -- A brown dwarf 12/14/2001 -- Annular solar eclipse visible in Pacific region 12/13/2001 -- The geminid meteor shower 12/12/2001 -- The moon's surface 12/11/2001 -- Open star cluster M11 12/10/2001 -- Constellation Cetus, the sea monster 12/09/2001 -- Spiral galaxy M63 12/08/2001 -- Jupiter's Great Red Spot and four largest moons 12/07/2001 -- 6th anniversary of the Galileo spacecraft's orbit around Jup12/06/2001 -- Constellations in the current western sky 12/05/2001 -- The celestial equator and sphere 12/04/2001 -- Galileo's first look at Saturn's rings 12/03/2001 -- Saturn is at opposition 12/02/2001 -- 28th anniversary of Pioneer 10 spacecraft 12/01/2001 -- Saturn's auroral displays 11/30/2001 -- Barringer Meteor Crater 11/29/2001 -- Irregular galaxy M82 11/28/2001 -- The star Fomalhaut in the night sky 11/27/2001 -- Asteroid Vesta at opposition 11/26/2001 -- Mars and Uranus in the night sky 11/25/2001 -- The terrestrial planets 11/24/2001 -- Open star cluster NGC 6791 11/23/2001 -- The Great Square of Pegasus 11/22/2001 -- Average speed of a meteor 11/21/2001 -- The Lunar Roving Vehicle 11/20/2001 -- Birth date of Edwin Hubble 11/19/2001 -- Earth/Moon size analogy 11/18/2001 -- Jupiter and Saturn in the night sky 11/17/2001 -- The Leonid meteor shower 11/16/2001 -- A crescent Moon 11/15/2001 -- Birth date of William Herschel 11/14/2001 -- Meaning of the new Moon 11/13/2001 -- Anniversary of Mariner 9's orbiting Mars 11/12/2001 -- Globular clusters in the Milky Way 11/11/2001 -- Mars, Uranus, Neptune in the night sky 11/10/2001 -- Open star cluster The Pleiades 11/09/2001 -- Birth date of Carl Sagan 11/08/2001 -- Birth date of Edmund Halley 11/07/2001 -- Aurorae: How they're formed 11/06/2001 -- Saturn's Cassini Division 11/05/2001 -- Illustration of Pluto and Charon 11/04/2001 -- Earth/Jupiter size comparison 11/03/2001 -- View of Saturn near the Moon 11/02/2001 -- Effects of the Roche Limit on a satellite 11/01/2001 -- Early morning view of Venus 10/31/2001 -- The reflection nebula "Witch Head' 10/30/2001 -- A huge Martian dust storm 10/29/2001 -- Best view of Mercury of the year 10/28/2001 -- A close neighbor, spiral galaxy M33 10/27/2001 -- The changing view of Saturn's rings 10/26/2001 -- Spacecraft Cassini's location today 10/25/2001 -- Earth's orbit and the Ice Age 10/24/2001 -- Spacecraft Mars Odyssey goes into orbit around Mars 10/23/2001 -- Planet Mars very close to the Moon 10/22/2001 -- Surfaces of Jupiter's moons Io and Callisto 10/21/2001 -- Orionid meteor shower peaks 10/20/2001 -- The Horsehead nebula 10/19/2001 -- Sound waves and space 10/18/2001 -- Winds on Neptune 10/17/2001 -- Comet Borrelly's nucleus 10/16/2001 -- Galileo's penultimate flyby of Io 10/15/2001 -- Saturn's F ring and satellites Prometheus and Pandora 10/14/2001 -- First supersonic flight 10/13/2001 -- A brilliant image from the Hubble Space Telescope 10/12/2001 -- Planet Mars at perihelion 10/11/2001 -- Anniversary of the launch of Apollo 7 10/10/2001 -- Neptune's satellite Triton and its retrograde orbit 10/09/2001 -- The Moon, Jupiter, and twin stars Castor and Pollux 10/08/2001 -- The eclipsing binary star Algol 10/07/2001 -- Our Sun's movement in space 10/06/2001 -- Ulysses spacecraft 10/05/2001 -- Birth date of Robert Goddard 10/04/2001 -- Sputnik 1 10/03/2001 -- Mt. Everest and Olympus Mons 10/02/2001 -- Supernova 1987A 10/01/2001 -- Anniversary of NASA 09/30/2001 -- Saturn's rings 09/29/2001 -- Asteroid Vesta 09/28/2001 -- The Hubble Constant 09/27/2001 -- Globular star cluster 09/26/2001 -- Measuring Stars 09/25/2001 -- The Sun 09/24/2001 -- Radio Telescope 09/23/2001 -- Planet Neptune 09/22/2001 -- Autumnal Equinox 09/21/2001 -- The (former) great dark spot of Neptune 09/20/2001 -- Hubble X star-forming region 09/19/2001 -- The physics of gravitational attraction 09/18/2001 -- Stars in the night 09/17/2001 -- Soviet lunar program 09/16/2001 -- A comet 09/15/2001 -- The star 47 Ursae Majoris 09/14/2001 -- Mars at Opposition 09/13/2001 -- Tides on Earth 09/12/2001 -- The Universe 09/11/2001 -- ISEE-3 Spacecraft 09/10/2001 -- Rings of Uranus 09/09/2001 -- Saturn's moons Janus and Epimetheus 09/08/2001 -- The star Betelgeuse 09/07/2001 -- Future of the Sun 09/06/2001 -- Clouds on Venus 09/05/2001 -- Infrared telescopes 09/04/2001 -- Water on Earth 09/03/2001 -- Geology/Mars 09/02/2001 -- The moon 09/01/2001 -- Solar flare 08/31/2001 -- Oxygen on Earth 08/30/2001 -- Saturn's moon Mimas 08/29/2001 -- Surveyor 3 08/28/2001 -- Galileo and the telescope 08/27/2001 -- Planet Saturn 08/26/2001 -- Planet Earth 08/25/2001 -- Planet Uranus 08/24/2001 -- Extra-Solar planets 08/23/2001 -- Planet Neptune 08/22/2001 -- The Galilean Satellites 08/21/2001 -- The Sun and Milky Way Galaxy 08/20/2001 -- Spacecraft Voyager 2 08/19/2001 -- Large and Small Magellanic Clouds 08/18/2001 -- Trifid Nebula 08/17/2001 -- Mars's satellite Phobos 08/16/2001 -- Shapes and sizes of galaxies 08/15/2001 -- Jupiter occultation 08/14/2001 -- Days of the Week 08/13/2001 -- Planet Venus 08/12/2001 -- Gravity on the Moon and Earth 08/11/2001 -- Perseid meteor shower 08/10/2001 -- Mars's moon Deimos 08/09/2001 -- The Tarantula Nebula 08/08/2001 -- A black hole 08/07/2001 -- The Milky Way 08/06/2001 -- Sand dunes on Mars 08/05/2001 -- Astronaut Neil Armstrong 08/04/2001 -- Spiral galaxy M81 08/03/2001 -- A solar flare 08/02/2001 -- The Cetus dwarf galaxy 08/01/2001 -- Planet Mercury 07/31/2001 -- Our Sun 07/30/2001 -- Cosmic dust bunnies 07/29/2001 -- Radio astronomers Penzias and Wilson 07/28/2001 -- The expanding Universe 07/27/2001 -- The rings of Uranus 07/26/2001 -- Saturn's moon Titan 07/25/2001 -- Why planets "shine" 07/24/2001 -- Units of time 07/23/2001 -- New Kuiper Belt Object 07/22/2001 -- Planetary Alignment 07/21/2001 -- Veil Nebula 07/20/2001 -- Footprint on the Moon 07/19/2001 -- The star Eta Carinae 07/18/2001 -- Galaxy NGC 1232 07/17/2001 -- Globular Cluster M15 07/16/2001 -- Comet Shoemaker-Levy 9 impact 07/15/2001 -- Apollo-Soyuz test project 07/14/2001 -- Mariner 4 and Mars 07/13/2001 -- Neptune's moon Triton 07/12/2001 -- Discovery of Saturn's rings 07/11/2001 -- Shakespearean moons 07/10/2001 -- The constellation Cygnus 07/09/2001 -- Star formation 07/08/2001 -- Dark, dirty comets 07/07/2001 -- What makes a star 07/06/2001 -- The teapot in Sagittarius 07/05/2001 -- Breakup of comet LINEAR 07/04/2001 -- The Crab Nebula 07/03/2001 -- Molecular cloud Barnard 68 07/02/2001 -- The Moon and Mars 07/01/2001 -- Neptune's moon Triton 06/30/2001 -- The constellation Scorpius 06/29/2001 -- American astronomer George Ellery Hale 06/28/2001 -- The origin of heavy elements 06/27/2001 -- The Big Dipper 06/26/2001 -- French astronomer Charles Messier 06/25/2001 -- Io's environment 06/24/2001 -- Double stars 06/23/2001 -- Hebes Chasma feature on Mars 06/22/2001 -- Pluto's moon Charon 06/21/2001 -- Summer solstice 06/20/2001 -- Mercury's rotation 06/19/2001 -- Naming surface features 06/18/2001 -- First American woman in space 06/17/2001 -- Jupiter's moon Callisto 06/16/2001 -- Cosmonaut Valentina Tereshkova 06/15/2001 -- The Martian moons Phobos and Deimos 06/14/2001 -- Uranus's name 06/13/2001 -- The Pioneer 10 spacecraft 06/12/2001 -- The Horsehead nebula 06/11/2001 -- Globular star clusters 06/10/2001 -- Stellar lifetimes 06/09/2001 -- The Sun's energy source 06/08/2001 -- Giovanni Cassini 06/07/2001 -- The changing Pole Star 06/06/2001 -- The Owl Nebula 06/05/2001 -- The Moon, Mars, and Antares 06/04/2001 -- Full Moon 06/03/2001 -- Star rising times 06/02/2001 -- The atmospheres of the Moon and Mercury 06/01/2001 -- Ganymede 05/31/2001 -- The sizes of the Earth and solar system. 05/30/2001 -- Shooting stars 05/29/2001 -- The star Regulus 05/28/2001 -- Asterisms 05/27/2001 -- The Gemini telescopes 05/26/2001 -- Why the sky is blue 05/25/2001 -- The Galileo probe 05/24/2001 -- Globular clusters 05/23/2001 -- The Milky Way Galaxy 05/22/2001 -- The Dumbbell planetary nebula 05/21/2001 -- The mass of the solar system 05/20/2001 -- Navigating with Jupiter's moons 05/19/2001 -- The Orion nebula 05/18/2001 -- Interstellar gas 05/17/2001 -- Norman Lockyer 05/16/2001 -- The sizes of the Moon and Sun 05/15/2001 -- Mercury's core 05/14/2001 -- The Skylab space station 05/13/2001 -- Hellas basin, Mars 05/12/2001 -- Jupiter's ring 05/11/2001 -- The constellation Hercules 05/10/2001 -- Planetary mnemonics 05/09/2001 -- The Moon's influence on Earth 05/08/2001 -- The distance to the sun 05/07/2001 -- Earthshine on the moon 05/06/2001 -- Jupiter's white ovals 05/05/2001 -- The Whirlpool Galaxy 05/04/2001 -- The planetary nebula NGC 7027 05/03/2001 -- Icy moons 05/02/2001 -- Pluto's color 05/01/2001 -- Venus's atmosphere 04/30/2001 -- Comet changes 04/29/2001 -- Ridges on Europa 04/28/2001 -- Jupiter's ring 04/27/2001 -- National Astronomy Day 04/26/2001 -- The 200104/25/2001 -- The Hubble Space Telescope 04/24/2001 -- The North America nebula 04/23/2001 -- The Lunar maria 04/22/2001 -- The globular cluster M3 04/21/2001 -- The Mariner 9 spacecraft 04/20/2001 -- Lyrid meteors 04/19/2001 -- Valles Marineris, Mars 04/18/2001 -- Saturn's moon Enceladus 04/17/2001 -- The constellation Corvus 04/16/2001 -- Neptune ring arcs 04/15/2001 -- Mars approaches

 

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