Space Shuttle Columbia is launched on the 83rd shuttle mission, intended to last over two weeks. In the cargo bay, the Spacelab module is set up for an intensive study of the behavior of natural processes in microgravity. A recurring issue with one of the shuttle’s three fuel cells concerns ground controllers enough to recall Columbia to Earth after only 63 orbits, only the third time a shuttle mission has been cut short. Aboard Columbia for her 22nd flight are Commander James Halsell, Pilot Susan Still, Payload Commander Janice Voss, mission specialists Donald Thomas and Michael Gernhardt, and payload specialists Roger Crouch and Greg Linteris. A reflight of the Spacelab mission is scheduled for the upcoming STS-94 mission in July.