Payload bay with Spacelab backdropped by Earth

STS073-736-018 (29 October 1995) --- The Kalahari Desert in Namibia, Africa, forms the backdrop for this scene. Five NASA astronauts and two guest researchers spent almost 16 days of research in this science module affixed in the payload bay of the Space Shuttle Columbia in Earth-orbit. The tunnel in bottom foreground served as the busy passageway for the seven crew members, who split their forces into two shifts. The Nosob and Olifants Rivers can be delineated in the terrain below.