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jsc2018e064787 (07/18/2018) --- 2017 NASA astronaut candidate Bob Hines is in a Liquid Cooling and Ventilation Garment and being helped into a spacesuit prior to underwater spacewalk training at NASA’s Johnson Space Center Neutral Buoyancy Laboratory in Houston. The cooling garment distributes water throughout to help keep him cool while training underwater in the spacesuit. Photo Credit: (NASA/Norah Moran)