Photo Gallery: 1st Spacewalk

NASA astronauts Andrew Feustel (left) and Greg Chamitoff (right), both STS-134 mission specialists, attired in Extravehicular Mobility Unit (EMU) spacesuits, are pictured in the Quest airlock of the International Space Station as they prepare for the start of the mission's first spacewalk. NASA astronauts Mark Kelly (center right), commander, and Michael Fincke, mission specialist, assisted Feustel and Chamitoff. All photos: NASA.

NASA astronauts Andrew Feustel (left) and Greg Chamitoff, both STS-134 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 six-hour, 19-minute spacewalk, Feustel and Chamitoff retrieved long-duration materials exposure experiments and installed another, installed a light on one of the station's rail line handcarts, made preparations for adding ammonia to a cooling loop and installed an antenna for the External Wireless Communication system.

Feustel works in the open payload bay of space shuttle Endeavour in this image taken from the space station which towers overhead the orbiter.

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