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JSC2009-E-061365 (23 March 2009) --- Astronaut John ?Danny? Olivas, STS-128 mission specialist, wearing the liquid cooling and ventilation garment that complements the Extravehicular Mobility Unit (EMU) spacesuit, prepares for a spacewalk training session in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center. Astronaut Jose Hernandez, mission specialist, assisted Olivas.
