Atlantis Mission: STS-115 Photos
Astronaut Heidemarie M. Stefanyshyn-Piper, STS-115 mission specialist, pauses for a moment during a Sept. 12 spacewalk, which she shared with astronaut Joseph R. Tanner. The two participated in the first of three scheduled STS-115 extravehicular activity (EVA) sessions as the Atlantis astronauts and the Expedition 13 crew members joined in efforts to resume construction of the International Space Station.
(Photo: AP Photo/NASA)
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