JSC2010-E-008558 (12 Jan. 2010) --- Japan Aerospace Exploration Agency (JAXA) astronaut Naoko Yamazaki (foreground) and NASA astronaut Stephanie Wilson, both STS-131 mission specialists, participate in a Thermal Protection System (TPS) Orbiter Boom Sensor System (OBSS) training session in the Jake Garn Simulation and Training Facility at NASA?s Johnson Space Center.