Hyperphysics is "a broad-ranging interactive physics exploration environment which is written in HTML with Javascript calculation routines." It was developed by Professor Rod Nave of Georgia State University and is...

AstroWeb contains annotated pointers in 10 major subject areas related to astronomy, including observatories, publications, and research areas. URLs are exhaustively tested, a real plus for any meta-site. Exact count is...

Created by two NASA scientists and selected as one of the Exploratorium in San Franciso's "Ten Cool Sites", the Exploration of Earth's Magnetosphere is a great learning site. Before diving into detailed descriptions of...

This lecture covers information about the energy source that powers the Sun. Since the gravitational and the electromagnetic forces are insufficient to provide the energy of the Sun, the strong and weak nuclear forces...

This website presents the news, events, and research of one of the UK and Ireland's leading astronomical research institutes, Armagh Observatory. Users can learn about the Observatory's many research projects in topics...

The Journals Division of University of Chicago Press has recently made the Astrophysical Journal available via the web. Astrophysical Journal has been published since 1895 and is one of "the foremost research journals in...

The members of the Gamma-Ray Astrophysics Team of the National Space Science and Technology Center "are actively involved in several projects which are designed to investigate the high energy regime of our Solar System...

These web pages, authored by Nick Strobel, contain material explaining Einstein's general and special theories of relativity. Gravity and warped spacetime are included, along with explanations of the impact on...

This site, created by Dr. Gene Smith of the University of California, San Diego, is very useful for a teacher. There are many tutorials, educational sites, curriculum resources and links to other courses. Topics on this...

This educational website provides animations of black holes, galaxies, and quasars. It uses either mpeg or quick time. Both of these formats are available in high and low resolution formats. There are links to podcasts,...