This website provides the user with basic, and important, information about galaxies. it first introduces the Hubble Tuning Fork Diagram, by proposing the creation of a galaxy classification system. Then it explains the...

This website, containing information from the Sloan Digital Sky Survey, provides projects and activities for advanced astronomy students. In this particular one, the user retraces Edwin Hubble's steps to discover that...

This website, containing information from the Sloan Digital Sky Survey, provides projects and activities for advanced astronomy students. Students compare the spectrums of stars and quasars. Students will also...

Being the first project proposed by SDSS, this website is more of an introductory course. It first shows the user what information the survey has retrieved, and how to look for it in the database. Then it explains the...

The Solar System Exploration website offers information about the objects in our solar system, recent technology used to explore these worlds, space missions, and news articles. This site also provides a gallery of...