S132-E-008059 (17 May 2010) --- NASA astronauts Steve Bowen (bottom) and Garrett Reisman, both STS-132 mission specialists, participate in the mission's first session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour, 25-minute spacewalk, Bowen and Reisman loosened bolts holding six replacement batteries, installed a second antenna for high-speed Ku-band transmissions and adding a spare parts platform to Dextre, a two-armed extension for the station’s robotic arm.