If you know of a particularly good site on a subject that we haven't listed , or you have or know of a personal site that may not be listed on a search engine, feel free to bring it to our attention so we can add it, if appropriate.
We would appreciate any feedback, good or bad, so we can update this list and try to make it more user friendly.
Hopefully this will be something we can all benefit from
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Biographies
Glossery of People in Astronomy(an alphabetical listing)
James Van Allen, Joseph Louise LaGrange, Carl Sagen, Eugene Shoemaker
Magazines and Space News Sites
Astronomy.com, Sky News Magazine, Sky and Telescope, Spaceweather .com, Space Daily.com, Space.com, SpaceRef.Com, CNN Science and Space News, ICARUS, International Journal of Solar System Studies, Red Nova (News), The Salopian Web, Spaceflight Now, Space Technology, The Planetary Society
General Astronomy
Astronomy Web Guide, Astronomy Picture of the Day, International Astronomical Union (IAU), NASA Image of the Day, Sea and Sky, Jack Horkheimer, Star Gazer, Hubble Newscentre, Glossary of Space Science Terminology
Radio Astronomy
Society of Radio Astronomers, Amateur Radio Astronomy, Project Page, The Jupiter Space Station Group, Haystack Observatory Small Radio Telescope (SRT) "Buy one for amateurs"
The Solar System
In General
Astronet, Solar System Simulator, The Nine Planets, Views of the Solar System, Near Earth Objects Map of the Solar System, Stardate Online, Planetary Image Finder, The Solar System.net, USGS Astrogeology Research Program, Lunar and Planetary Institute
The Sun
SOHO Data
Mercury
Venus
The Soviet Exploration of Venus, Chasing Venus (Observing Venus Transits, 1631 - 2004), The Pioneer Venus Mission
Earth
Sun Earth Connection Roadmap
Moon
Clementine Project, Apollo 12 Surveyor II Analysis, Lunar Atlases, Lunar Science Home Page
Mars
Mars Virtual Spacecraft (Zoomable Mars atlas), NASA's Centre for Mars Exploration, The Mars Society, Explore Mars Now (Homepage), Mars Today.com (Mars News), Mars Academy, Mars News.com, Mars Direct Home Page, The Daily Martian Weather Report, NASA Haughton-Mars Project (Mars on Earth), Mars Institute, Mars Meteorites, Maestro Headquarters , Mars Research (Viking Labelled Release Experiment), The Geology of Mars, Planet Mars Home Page
Jupiter
Saturn
Cassini Imaging Central Laboratory for Operations (CICLOPS)
Titan
Uranus
http://www.btinternet.com/~prgreetham/Wise...en/theory5.html ( Uranus theory )
Neptune
Pluto
Other Moons
Giant Planet Satellite Page
Asteroids and Comets
Minor Planet Research Inc., Near Earth Object Program, Sebastian's Comet Hunt, Minor Planet Centre, Major News about Minor Objects, The 234 Radar Detected Asteroids, International Meteor Organization (IMO), JPL's Comet Observation Home Page
Craters and Impacts
Exploring Earth's Impact Page, Asteroid and Comet Impact Craters and Mass Extinctions
Extrasolar Planets
Extrasolar Visions, Other Words, Distant Suns, California & Carnegie Planet Search, The Extrasolar Planets Encyclopaedia, Extra Solar II, Laird Close Steward Observatory (Exo-planet Imaging), JPL's Planet Quest
Space Agencies and Departments
Jet Propulsion Laboratory (JPL), Kennedy Space Centre (KSC), Europeon Space Agency (ESA), Canadian Space Agency (CSA), Brazilian Space Agency, Russian Space Agency (RKA), NASA, NASA Ames Research Centre, Sea Launch, Space Science Institute, National Space Science Data Centre (NSSDA), NASA's Marshall Space Flight Centre, Japan Aerospace Exploration Agency (JAXA), Orbital Sciences Corporation, Vandenberg Air Force Base (Launch site)
Space Missions
Unmanned
Mars Odyssey, Cassini, Galileo, Mars Rovers (Spirit and Opportunity), Rosetta, Stardust, Voyager, Pioneer, Chandra X-Ray Observatory, Space Telescope Science Institute (Hubble), Ulysses (JPL Site), Ulysses (ESA Site), Mars Global Surveyor, Gaia Mission, Aura, Wilkinson Microwave Anisotrophy Probe (WMAP), Magellan, Ranger Series (Moon Probes), Smart 1
Manned
International Space Station (ISS), Apollo Program, Ansari X-Prize Homepage, Scaled Composites Homepage, The DaVinci Project
Satellites
NOAA Office of Satellite Operations, Allan Pickup's Satellite Decay Watch, Heavens Above
Concepts and Future Missions
The Space Elevator, NASA/JPL Terrestrial Planet Finder, New Horizons Mission to Pluto, Kepler Mission, ESA's Darwin Mission, Hershel Space Observatory, Messenger (Mercury Orbiter), Square Kilometre Array (SKA), Planet-C "Venus Exploration Mission", Global Precipitation Measurement (GPM) Mission, Space Interferometry Mission (SIMS), Venus Express, Venus Geophysical Lander Concept, SELENE(SELenological and ENgineering Explorer)
Stars & Galaxies
In General
Delmarva Stargazers On-Line, Southern Sky Watch, The Night Sky for This Month, Logarithmic Maps of the Universe, The Baker Observatory Astronomy Pictures, Captain's Universe, La Silla Observatory
Stars
Solstation.com, The Universe Within 12.5 Light Years. (Star Listing), Stars within 20 Light Years, The 75 Nearest Stars, The 100 Nearest Star Systems
Galaxies
Astrobiology
Astrobiology at NASA, Astrobiology Magazine
Cosmology
Ned Wright's Cosmology Tutorial,
Physics
The Particle Physics and Astronomy Research Council (PPARC), Space Plasma Physics Group, USENET's Physics FAQs, Hyperphysics, Mathematical Physics Index, Physics 2000
Theories & Skepticism
Phil Plait's Bad Astronomy,
Velikovsky, The Electric Universe, The Plasma Universe, Is the Planet Venus Young?, Tribunal Theory Homepage, The Origin of the Moon, Iron Sun Theory, Moon Base Clavius (Debunking site for Apollo Hoax), Planet X and the Pole Shift (A look at the science behind Planet X), The Enterp[rise Mission (Richard Hoagland's Webpage)
En Espanol
Proyecto Hubble, Mars Exploration Rovers, Astroenlazador, Mision Kepler de la NASA, Misión CervantesPlanetary Classification List