NASA's Compton Gamma Ray Observatory drifts away from the space shuttle Atlantis on April 7, 1991, following its deployment during the STS-37 mission.
NASA/Ken Cameron
1991-04-07
<a rel="nofollow" class="external free" href="https://www.nasa.gov/image-feature/april-7-1991-deployment-of-breakthrough-gamma-ray-observatory">https://www.nasa.gov/image-feature/april-7-1991-deployment-of-breakthrough-gamma-ray-observatory</a> (<a rel="nofollow" class="external text" href="https://www.nasa.gov/sites/default/files/thumbnails/image/s37-96-010.jpg">image link</a>)