Cos-B principal features

The principal features of ESA's Cos-B satellite. Launched 9 August 1975, Cos-B provided the first complete galactic survey in high-energy gamma-rays. Before this, the gamma-ray Universe had been little explored by astronomers. Designed for a 1-2 year life, it operated successfully until April 1982. [Image Date: 1974] [98.01.013-002]