NASA
Nasa: Imagine the Universe: X Ray, Gamma Ray Astronomy
Frequently asked questions are answered about gamma rays.
NASA
Nasa: Imagine the Universe: Gamma Ray Astronomy Satellites and Missions
"We present the many satellites which have detected electromagnetic radiation through the 1960s, 70s, 80s, and 90s." Visit this site to read more about the development of satellites throughout the history of gamma-ray astronomy. Graphics...