JSC2008-E-039235 (12 May 2008) --- Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata, Expedition 18 flight engineer, gives a "thumbs-up" signal as he awaits the start of a training session in the waters of the Neutral Buoyancy Laboratory (NBL) near NASA's Johnson Space Center. Wakata is attired in a training version of the Extravehicular Mobility Unit (EMU) spacesuit.
Photographer Markowitz