COS-B, 1975-1982, Europe's pioneer gamma-ray observatory
![](https://cdn.sci.esa.int/documents/33534/35212/1567215943382-COS-B_1975-1982_Europe_s_pioneer_gamma-ray_observatory_625.jpg)
Date: 07 August 2015
Satellite: COS-B
Copyright: ESA
COS-B was the first ESA mission dedicated to the study of high-energy gamma-ray sources.
Last Update: 1 September 2019
COS-B was the first ESA mission dedicated to the study of high-energy gamma-ray sources.