ISS024-E-011584 (7 Aug. 2010) --- NASA astronaut Doug Wheelock, Expedition 24 flight engineer, attired in his Extravehicular Mobility Unit (EMU) spacesuit, is pictured in the Quest airlock of the International Space Station prior to the start of the first of three planned spacewalks to remove and replace an ammonia pump module that failed July 31.
Date August 7, 2010