NASA astronaut Reid Wiseman, Expedition 40/41 flight engineer, participates in a spacewalk – or extravehicular activity (EVA) – training session on May 14, 2013 in the Partial Gravity Simulator (POGO) test area in the Space Vehicle Mock-up Facility at NASA’s Johnson Space Center. NASA astronaut Steve Swanson (left), Expedition 39 flight engineer and Expedition 40 commander, assists Wiseman.
Image credit: NASA