Rare Earth hypothesis - Wikipedia, the free e...
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http://en.wikipedia.org/wiki/Rare_Earth_hypothesis
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The Extrasolar Planets Encyclopaedia
Excellent site for those after the facts. In English and French. ... Jean Schneider CNRS/LUTH - Paris Observatory. The URL is exoplanet.eu. Update : 18 July 2009 ...
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StarChild: A Learning Center for Young Astronomers
This site is intended for students in grades K through 8. ... (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/ GSFC. ...
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NASA Earth Observatory
Explore with scientists the causes and effects of climatic and environmental change through the use of real satellite data.
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Stellarium
Stellarium is planetarium software that shows exactly what you see when you look up at the stars. It's easy to use, and free.
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Space elevator - Wikipedia, the free encyclopedia
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NASA - Science@NASA
Research news from NASA.
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WorldWide Telescope
Turn your computer into a virtual telescope. Microsoft's WorldWide Telescope brings together imagery from the best ground and space-based telescopes for a seamless exploration of the universe. Also offers guided tours of the sky by astronomers and educators.
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AbsoluteAstronomy.com
General facts and statistical information about planets, moons, constellations, stars, galaxies, and Messier objects.
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Home | Galaxy Zoo
Galaxy Zoo is an online, large-scale astronomical survey that asks volunteers to help classify galaxies.
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NASA Science - Science Mission Directorate
Research news from NASA.
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