NASA Administrator Charles Bolden (left), accompanied by astronaut Capt. Mark Kelly, husband of wounded Arizona Rep. Gabrielle Giffords, speaks at the National Press Club in Washington on July 1, 2011. (Associated Press)
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NASA Administrator Charles Bolden (left), accompanied by astronaut Capt. Mark Kelly, husband of wounded Arizona Rep. Gabrielle Giffords, speaks at the National Press Club in Washington on July 1, 2011. (Associated Press)
