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NASA Sites

NASA's search page - http://search.nasa.gov/nasasearch/search/search.jsp

Popular Search Topics - http://www.nasa.gov/search/popular/

Planets - http://solarsystem.nasa.gov/planets/

Missions - http://solarsystem.nasa.gov/missions/index.cfm

Cassini-Huygens Mission Page - http://www.nasa.gov/mission_pages/cassini/main/index.html

Earth's Moon - http://solarsystem.nasa.gov/planets/profile.cfm?Object=Moon

Hubble Space Telescope - http://hubble.nasa.gov/index.php

Sun - http://science.nasa.gov/ssl/PAD/SOLAR/whysolar.htm

Stars and Galaxies - http://www.jpl.nasa.gov/stars_galaxies/

Asteroid and Comet Impact Hazards - http://impact.arc.nasa.gov/index.html Near Earth Object (NEO) Catalog (this is on the Asteroid and Comet Impact Hazard Site, but it's useful enough to get its own linky) - http://impact.arc.nasa.gov/index.html

Deep Impact - http://deepimpact.jpl.nasa.gov/index.html

Satellites - http://liftoff.msfc.nasa.gov/toc.asp?s=Satellites