Astronauts Rick Mastracchio and Canadian Space Agency's Dave Williams (out of frame), both STS-118 mission specialists, participate in their mission's first spacewalk for ISS construction on Aug. 11, 2007. Credit: NASA.
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Astronauts Rick Mastracchio and Canadian Space Agency's Dave Williams (out of frame), both STS-118 mission specialists, participate in their mission's first spacewalk for ISS construction on Aug. 11, 2007. Credit: NASA. |
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