Space or spouse? Many support Kelly's decision

Astronaut Mark Kelly prepares to discuss his decision to command the final flight of the Space Shuttle Endeavor during a news conference at Johnson Space Center  on Friday, Feb. 4, 2011 in Houston. Kelly's wife, Representative Gabrielle Giffords is recuperating from a gunshot wound to the head in a Houston hospital.  AP Photo / Michael Stravato)

Astronaut Mark Kelly prepares to discuss his decision to command the final flight of the Space Shuttle Endeavor during a news conference at Johnson Space Center on Friday, Feb. 4, 2011 in Houston. Kelly's wife, Representative Gabrielle Giffords is recuperating from a gunshot wound to the head in a Houston hospital. AP Photo / Michael Stravato)

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