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...

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 web page provides milestones of the European Space Agency's first space probe to the moon. The ESA's ion driven SMART-1 probe entered lunar orbit on 2004 Nov 16 after an 80 million kilometer, 13 month journey. ...

The European Space Agency's homepage provides information on the ESA's telecommunications, navigations, Earth observations, human spaceflight missions, launches, space science, technology, industry, space operations,...

This activity has students use internet resources to learn about celestial coordinates, and how to use an emphemeris to locate planets on a horizon sky map. The sky maps are then used for outdoor observing. A more...