NASA astronaut Chris Cassidy emerges from the Quest airlock during a spacewalk as work continues on the International Space Station July 9, 2013 in Earth orbit. During the six-hour, seven-minute spacewalk, Cassidy and Parmitano prepared the space station for a new Russian module and performed additional installations on the stations backbone.

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NASA astronaut Chris Cassidy emerges from the Quest airlock during a spacewalk as work continues on the International Space Station July 9, 2013 in Earth orbit. During the six-hour, seven-minute spacewalk, Cassidy and Parmitano prepared the space station for a new Russian module and performed additional installations on the stations backbone.

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Size: 5150px × 3432px
Location: Earth orbit
Photo credit: © NASA Photo / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: airlock, american, astronaut, astronauts, canadarm, eva, horizontal, iss, italian, nasa, outdoors, quest, repairs, science, spacecraft, spacesuits, spacewalk, technology, usa, work, working