Microgravity

The STS-50 crew portrait includes (from left to right): Ellen S. Baker, mission specialist; Kenneth D. Bowersox, pilot; Bonnie J. Dunbar, payload commander; Richard N. Richards, commander; Carl J. Meade, mission specialist; Eugene H. Trinh, payload specialist; and Lawrence J. DeLucas, payload specialist. Launched aboard the Space Shuttle Columbia on June 25, 1992 at 12:12:23 pm (EDT), the primary payload for the mission was the U.S. Microgravity Laboratory-1 (USML-1) featuring a pressurized Spacelab module.