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Above the Earth, NASA astronaut Sunita Williams, Expedition 32 flight engineer, appears to touch the bright sun during the mission's third session of extravehicular activity (EVA) on September 5, 2012. During the six-hour, 28-minute spacewalk, Williams and Japan Aerospace Exploration Agency astronaut Aki Hoshide (visible in the reflections of Williams' helmet visor), flight engineer, completed the installation of a Main Bus Switching Unit (MBSU) that was hampered by a possible misalignment and damaged threads where a bolt must be placed. They also installed a camera on the International Space Station's robotic arm, Canadarm2. (Photo by NASA)
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