Solar System Encyclopedia - Resource information about the solar system in both picture, diagram and written information formats. Astronomy Tour of the Nine Planets - Information about the planets. Meteor Shower - The Leonid shower was caused by a passing comet. USGS Planet Information homepage - Pictures and chart data on the solar system. More NASA Pictures - Planet and other pictures.
Some live video feeds.
Space Station Homepage - Central link for the space station. Chemistry Periodic Chart - Use this chart to find information about the elements. This one will also pronounce the name for you if you click the 'horn'.