Purdue University6 年
Gamma-ray bursts challenge theoretical models
"This is the region where the detector on NASA's orbiting Compton Gamma Ray Observatory makes observations. "Just why Markarian 421 radiates in this unusual manner is a question scientists are very ...
Purdue University6 年
Discovery points to new type of galaxy
in 1992 at the Smithsonian's Whipple Observatory in southern Arizona. This source had been detected earlier by NASA's Compton Gamma Ray Observatory. The gamma-ray telescopes on the Compton Observatory ...