JSC2013-E-024870 (23 April 2013) — NASA astronaut Steve Swanson, Expedition 39 flight engineer and Expedition 40 commander, enjoys a light moment while preparing for the start of a spacewalk training session in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center. Swanson is wearing a training version of his Extrave
JSC2013-E-024870 (23 April 2013) — NASA astronaut Steve Swanson, Expedition 39 flight engineer and Expedition 40 commander, enjoys a light moment while preparing for the start of a spacewalk training session in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA’s Johnson Space Center. Swanson is wearing a training version of his Extravehicular Mobility Unit (EMU) spacesuit. Photo credit: NASA