Stock Photo - FILE: In this photo released by NASA, Astronaut William A. Oefelein, STS-116 pilot, poses for a portrait following a pre-flight press conference at Johnson Space Center in Houston, Texas on November 6, 2006..Credit: NASA via CNP | usage worldwide. - Houston/Texas/

Stock Photo: FILE: In this photo released by NASA, Astronaut William A. Oefelein, STS-116 pilot, poses for a portrait following a pre-flight press conference at Johnson.

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