EVA 3

S124-E-007254 (8 June 2008) --- Astronauts Mike Fossum (bottom) and Ron Garan, both STS-124 mission specialists, participate in the mission's third scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the six-hour, 33-minute spacewalk, Fossum and Garan exchanged a depleted Nitrogen Tank Assembly for a new one, removed thermal covers and launch locks from the Kibo laboratory, reinstalled a repaired television camera onto the space station's left P1 truss, and retrieved samples of a dust-like substance from the left Solar Alpha Rotary Joint for analysis by experts on the ground.