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June 3, 2011
Members of the flight crew pose alongside a T-38 jet trainer aircraft after arriving at the Kennedy Space Center (KSC) Shuttle Landing Facility (SLF) for Terminal Countdown Demonstration Test (TCDT) exercises for their space flight. They are astronauts (left to right) Roger K. Crouch, payload specialist; Susan L. Still, pilot; James D. Halsell, Jr., commander; Michael L. Gernhardt, mission specialist; Gregory T. Linteris, payload specialist; Janice E. Voss, payload commander. The Microgravity Science Laboratory 1 (MSL-1) Spacehab Module is the primary payload on this 16-day mission. The MSL-1 will be used to test some of the hardware, facilities and procedures that are planned for use on the International Space Station (ISS), while the seven-member crew conducts combustion, Protein Crystal Growth (PCG) and materials processing experiments.

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