Space ShuttleSpace Shuttle Columbia is launched on the 58th shuttle mission, a two-week stay in orbit with the Spacelab module. This is the second Spacelab flight devoted to medical experiments and life sciences. Aboard Columbia for her 15th flight are Commander John Blaha, Pilot Richard Searfoss, mission specialists Rhea Seddon, William McArthur, David Wolf and Shannon Lucid, and payload specialist Martin Fettman.