Created by the Space Telescope Science Institute, this website provides access to fun and engaging learning activities about astronomy, all of which live up to the website's name. The Institute also happens to oversee...

Project CLEA at Gettysburg College and the XMM-Newton Education group at Sonoma State University have created a new computer-based activity. Students analyze realistically simulated X-ray spectra of a supernova remnant...

In this computer-based exercise, students analyze realistically simulated X-ray spectra of a supernova remnant and determine the abundances of various elements in them. In the end, they will find that the elements...

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...

This site, created by John Walker of Formilab -- Switzerland, allows users to view the earth and moon, and daylight and night regions, from a wide range of viewpoints. These include from the sun, the moon, the earth, at...