Astronaut Mark Kelly, husband to Rep. Gabrielle Giffords (D-Ariz.), is expected to announce that he will command the flight of space shuttle Endeavor, a source close to the situation said.
After a Tucson shooting that left his wife fighting for her life, Kelly questioned the status of his mission to command the flight. Subsequently, NASA named a backup commander should Kelly have decided not to proceed with the mission.
NASA indicated earlier that a press conference would be held on Friday to announce the official commander of the STS-134 shuttle mission, Kelly isscheduled to attend.
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