This was the 50th Space Shuttle launch and the second flight of Endeavour. The crew consisted of Mision Commander Robert L Gibson; Pilot Curtis L Brown Jr; Payload Commander Mark C Lee; Mision Specialists N Jan Davis and Jay Apt; Science Mision Specialist Dr Mae C Jemison and Payload Specialist Mamoru Mohri. The main payload carried on the seven-day mision, designated STS-47, was the Spacelab-J science laboratory. The Space Shuttle, the world's first partially reusable launch vehicle, first flew on 12th April 1981 and has been used for all America's manned space misions ever since. It normally carries a crew of five to seven astronauts and can lift a payload of some 25,000 kilograms into low Earth orbit.
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