Stock Photo - Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as maintenance and construction continue on the International Space Station. During the 7-hour, 10-minute spacewalk, Whitson and astronaut Daniel Tani (out of frame), flight engineer, replaced a motor, known as the Bearing Motor Roll Ring Module (BMRRM), at the base of one of the station's solar wings. The BMRRM is part of the Beta Gimbal Assembly, which experienced electrical failures Dec. 8. A blue and white Earth and the blackness of space provide the backdrop for the scene.

Stock Photo: Astronaut Peggy Whitson, Expedition 16 commander, participates in a session of extravehicular activity (EVA) as maintenance and construction continue on the.

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