This web page from Professor David Jewitt gives an explanation of kuiper belt objects and comets. It is described at a very basic level and includes links and images.

This site from NOVA and PBS provides a simulation of the identification of elements in a star, a nebula, a planet, and a galaxy. The interactive resource allows a user to match individual spectral lines of seven...

Authored and curated by David P. Stern, this series of three web pages gives information about the usage of the transit of Venus to measure distances in the solar system. The site also contains a large collection of...

This site offers a variety of Java applets which explore the motion of planets, stars, and galaxies. Each applet comes with background information on the pertinent astrophysics, a technical description of what's being...

ISS EarthKAM is described as a NASA-sponsored program that provides stunning, high quality photographs of our planet taken from the Space Shuttle and International Space Station. The Students page contains a Resources...