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Science News

Spacewalking astronauts complete urgent repair job

In this Wednesday, April 23, 2014 image made from video provided by NASA, astronauts Steven Swanson, left, and Rick Mastracchio perform a spacewalk outside the International Space Station to replace a dead computer. The device is a critical backup outside the station that failed nearly two weeks ago. The prime computer has been working fine, but NASA wanted to install a fresh spare as soon as possible. (AP Photo/NASA)

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