In this image from NASA TV spacewalker Steve Swanson works to retract the P6 solar array June 13, 2007. During the six-hour spacewallk a pair of spacewalkers will also prepare the newly installed S3/S4 truss for operation and finish the retraction of the starboard P6 solar array to set the stage for a future shuttle crew to relocate the P6 from atop the space station to the end of the Port 5 truss. (Xinhua/Reuters Photo)
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