Stock Photo - Astronauts Barbara R. Morgan (left) and Tracy Caldwell, both STS-118 mission specialists, pose with a photo of astronauts Clay Anderson and Sunita Williams, both Expedition 15 flight engineers, near a hatch on the International Space Station while Space Shuttle Endeavour remains docked with the station.

Stock Photo: Astronauts Barbara R. Morgan (left) and Tracy Caldwell, both STS-118 mission specialists, pose with a photo of astronauts Clay Anderson and Sunita Williams.

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