This site describes soft gamma repeaters. The author, Robert C. Duncan of the University of Texas at Austin, explains how these strange, physically-extreme stars form, and why they emit steadily pulsating X-rays with...

This report examines the ability of two halophiles isolated from San Francisco Bay to survive severe Martian conditions. The report introduces the extreme conditions on Mars and offers a brief survey of extremophiles. ...

A NASA mission expected to launch in 2006, the Gamma Ray Large Area Space Telescope (GLAST) is being developed to observe celestial gamma-ray sources in the 10MeV to over 100GeV energy band. After discovering its four...

This collection of activities and information teaches students about Gamma ray bursts by having them follow exactly the same procedures used by today's astronomers. Students will review some basic physics concepts about...

This activity demonstrates what a dipole magnetic field looks like in 3D. It was developed because the commonly used classroom demo (iron filings on a sheet of paper on top of a bar magnet) leads to student misconception...