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Gamma-Ray Burst
Afterglow Anniversary

On Feb 28, 1997, the Italian-Dutch satellite BeppoSax detected the first afterglow of a gamma-ray burst. From its precise determination of the position of the X-ray counterpart, optical observers were able to determine that the burst had occured in a distant galaxy. The puzzle as to where GRBs occur had finally been solved.

This became the first of many such detections, and opened the field of GRBs to a new array of theories and explanations. Much remains a mystery, but discovery on that day led to a new understanding of the most powerful explosions in the Universe. We offer a second look at number of articles on GRBs:

* Tell me more about BeppoSax

* Tell Me more about Swift
Publication Date: February 2007

Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

The Imagine Team
Acting Project Leader: Dr. Barbara Mattson
All material on this site has been created and updated between 1997-2012.

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