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October 23, 2013
(14 March 2012) --- NASA astronaut Tom Marshburn, Expedition 34/35 flight engineer, dons a training version of the Extravehicular Mobility Unit (EMU) spacesuit in preparation for a spacewalk training session in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center. Suit technician Letti Castillo assisted Marshburn. Photo credit: NASA