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JSC2011-E-215849
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JSC2011-E-215849

October 23, 2013
(7 Dec. 2011) --- NASA astronaut Tom Marshburn, Expedition 34/35 flight engineer, attired in a training version of his Extravehicular Mobility Unit (EMU) spacesuit, awaits the start of a spacewalk training session in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center. Photo credit: NASA


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