S82-41355 (December 1982) --- The four crew members for NASA?s STS-6 mission go through a training exercise in the full-scale engineering mock-up in the shuttle mock-up and integration laboratory at the Johnson Space Center (JSC). Their seating configuration reflects that of launch and landing phases aboard the space shuttle Challenger. The front stations are occupied by astronauts Paul J. Weitz (left), commander, and Karol J. Bobko, pilot. In the rear seats are astronauts Story Musgrave and Donald H. Peterson, both mission specialists. STS-6 will be the Challenger?s first flight when it takes this crew and a tracking and data relay satellite (TDRS) into Earth orbit the early part of next year. Photo credit: NASA