Editing Compton Gamma Ray Observatory (section)

===Basic results===
*The EGRET instrument conducted the first all sky survey above 100 MeV. Using four years of data it discovered 271 sources, 170 of which were unidentified.
*The COMPTEL instrument completed an all sky map of {{chem|26|Al}} (a radioactive [[isotopes of aluminium|isotope of aluminum]]).
*The OSSE instrument completed the most comprehensive survey of the galactic center, and discovered a possible [[antimatter]] "cloud" above the center.
*The BATSE instrument averaged one gamma ray burst event detection per day for a total of approximately 2700 detections. It definitively showed that the majority of gamma-ray bursts must originate in distant galaxies, not nearby in our own [[Milky Way]], and therefore must be enormously energetic.
*The discovery of the first four [[Soft gamma repeater|soft gamma ray repeaters]]; these sources were relatively weak, mostly below 100 keV and had unpredictable periods of activity and inactivity
*The separation of GRBs into two time profiles: short duration GRBs that last less than 2 seconds, and long duration GRBs that last longer than this.