NASA Shuttle Web
http://shuttle.nasa.gov
If you want to learn about the space shuttle, you must visit the NASA Shuttle Web. NASA continuously posts the latest information on shuttle launches and maintains current updates on the Space Shuttle missions. Great graphics and space shots!
NASA Information Services
http://www.gsfe.nasa.gov
The National Aeronautics and Space Administration (NASA) Homepage is the world's most comprehensive web site that deals with space and space exploration. Beware: This site is extensive and you can find yourself spending many hours in awe looking at space photos and learning about the many famous NASA missions. This site has some of the most impressive graphics and quicktime movies on the web!
The Nine Planets Tour
http://seds.lpl.arizona.edu/billa/tnp
The Nine Planets is a multimedia tour of the solar system. This web site is a virtual essay about our solar system with text, pictures, sounds and an occasional movie. Each of the planets and major moons in our solar system is briefly described and illustrated with fantastic pictures from NASA spacecraft.
Galileo Space Probe
http://ccf.arc.nasa.gov/galileo_probe/
The Galileo space probe has its own home page! It documents the exploration of Jupiter. The pictures are spectacular!
Hubble Space Telescope
http://www.stsci.edu/public.html
Hubble Space Telescope and Space Telescope Science Institute gives access to the latest images from space.
NASA Space Experiments Division
http://zeta.lerc.nasa.gov/sedhome.htm
NASA Space Experiments Division from NASA's Microgravity Science Division has detailed descriptions of experiments run on the shuttle. It's a good start for research projects.
NASA Observatorium
http://observe.ivv.nasa.gov/
NASA's Education Program
http://www.hq.nasa.gov/education/
NASA's Learning Technology Project
http://learn.ivv.nasa.gov/
NASA Classroom of the Future
http://www.cotf.edu/
Liftoff to Space Exploration
http://liftoff.msfc.nasa.gov/
NeurOn - Neurolab Online
http://quest.arc.nasa.gov/neuron/