Astronomy

Cosmos Portal - Offers information on astronomy and space science including news, events, blogs, images, videos and links to other sites. It is written and compiled by experts.
http://www.cosmosportal.org

Astronomical Applications Department, U.S. Naval Observatory - Computes the position, brightness, and other observable characteristics of celestial bodies, as well as the circumstances of astronomical phenomena. Includes information on calendars and related topics.
http://aa.usno.navy.mil/

Eric Weisstein's World of Astronomy - A web encyclopedia. Over 500 entries, ranging from definitions to full articles.
http://scienceworld.wolfram.com/astronomy/

Muse - Multi Unit Spectroscopic Explorer. A second generation integral field spectrograph for the VLT. Proposed to European Southern Observatory (ESO) by the Centre de Recherche Astronomique de Lyon (CRAL).
http://muse.univ-lyon1.fr/

Astronomical Pseudo-Science: A Skeptic's Resource List - List of links for those, who want to examine theories that are on the fringe of accepted scientific thought that are related connected to astronomy. A few examples are astrology, UFO's, the "Face" on Mars, and ancient astronaut theory.
http://www.astrosociety.org/education/resources/pseudobib.html

Astronomy for All - Index with graphics and illustrations about stars, the Solar System, cosmology and Galileo.
http://www.pd.astro.it/E-MOSTRA/A0000HOM.HTM

Stars and Planets - Information about interesting stars and planets in the galaxy, as well as astral bodies outside the Milky Way. Includes photos.
http://jumk.de/astronomie/astronomy.shtml

Astronomy and Space - Explores the latest research in astronomy, with overviews of planets and deep-space issues, oberving tips for constellations and what can be seen in the sky tonight.
http://astronomyspace.suite101.com/

The Naming of Stars - Leaflet from Royal Greenwich Observatory.
http://www.nmm.ac.uk/server/show/conWebDoc.309

Space.com - The Greatest Myths, Hoaxes & Mysteries in Astronomy and Space Science - Article briefly discussing 21 topics.
http://www.space.com/scienceastronomy/myths_hoaxes_030325.html

Absolute Astronomy - Facts and statistical information about planets, moons, constellations, stars, galaxies, and Messier objects.
http://www.absoluteastronomy.com/

Universe Wiki: Galaxies, Stars and Space Directory - New Universe web directory with articles on a wide range of astronomical and cosmological topics.
http://www.newuniverse.co.uk/

Astronomy Today - Information and articles on astronomy, space and related topics. Also features a friendly forum and a telescope buyer's FAQ page.
http://www.astronomytoday.com/

AstroWeb - Astronomical internet resources from the National Radio Astronomy Observatory.
http://www.cv.nrao.edu/fits/www/astronomy.html

Infrared Astronomy - All about infrared astronomy from NASA's infrared astronomy center: Discovery of infrared, what is infrared and infrared astronomy, history, the infrared universe, gallery, activities, discoveries, missions and a lot of links to IR astronomy sites.
http://coolcosmos.ipac.caltech.edu/cosmic_classroom/ir_tutorial/

Astronomy Facts and Trivia - Fun facts and trivia relating to astronomy, space, science fiction movies. Most trivia items are submitted by users.
http://www.funtrivia.com/ql.cfm?cat=59

Astronomy - Introductory article provided by Citizendium, a developing encyclopedia project.
http://en.citizendium.org/wiki/Astronomy

Astronomy Net - Resources, searchable forums and searchable lists of organizations providing astronomy services.
http://www.astronomy.net/

Astronomy Education and Outreach - General astronomy tutorial, education links, web courses, documents at the UCSD Center for Astrophysics and Space Sciences.
http://casswww.ucsd.edu/public/astroed.html

An Atlas of the Universe - Contains 3D maps of the universe zooming out from the nearest stars to the scale of the galaxy and out to the surrounding superclusters and finally to the scale of the known universe.
http://www.atlasoftheuniverse.com/

Elegant Universe - Provides introductory information about galaxies, the big bang, stars, the solar system, planets, asteroids, comets, astronomical events and astronomy related news.
http://www.elegant-universe.webs.com

Logarithmic Maps of the Universe - Show universe in terms of distance from Earth center. Includes such things as satellites, planets, stars, nebulae, and galaxies, out to cosmic microwave background radiation from the Big Bang.
http://www.astro.princeton.edu/~mjuric/universe/

Astronomical Optical Interferometry - The use of multiple telescopes to produce high resolution images - commonly used at most modern observatories. A literature review article.
http://astronomicaloptical.blogspot.com/

Astronomy Online - Gives overview of the solar system, the Milky Way galaxy, extrasolar planets, cosmology and astrophotography. Includes images, additional resources, and forums.
http://astronomyonline.org

A Review of the Universe: Structures, Evolutions, Observations, and Theories - A retired physicist surveys the entire extent of the universe touching upon phenomenon from the largest to the smallest size and covering the entire cosmic interval from past to present.
http://universe-review.ca/