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jsc2011e029130
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jsc2011e029130

February 22, 2012
JSC2011-E-029130 (25 March 2011) --- NASA astronaut Greg H. Johnson (foreground), STS-134 pilot, participates in a training session in the simulation control area in the Neutral Buoyancy Laboratory (NBL) at the Sonny Carter Training Facility near NASA's Johnson Space Center. Photo credit: NASA or National Aeronautics and Space Administration


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