STS073-106-001 (20 October-5 November 1995) --- Payload specialist Albert Sacco Jr. takes direction from a crew mate out of frame onboard the United States Microgravity Laboratory (USML-2) science module in the cargo bay of the Space Shuttle Columbia. Sacco was about to check out an experiment in a glovebox, which represented one of the busier areas during the 16-day USML-2 flight.