File photograph of Space Shuttle Commander Mark Kelly

Space Shuttle Commander Mark Kelly, left, talks during the STS-124 crew news conference along with, left to right, pilot Kenneth Ham, mission specialists Karen Nyberg, Ronald Garan, Michael Fossum, Akihiko Hoshide of Japan's Aerospace Exploration Agency (JAXA) and Gregory E. Chamitoff at the Johnson Space Center in Houston, Texas, in this May 1, 2008 file photograph.
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