NASA Administrator Charles Bolden's cowboy boots are seen as he testifies during a U.S. Senate Committee on Commerce, Science, and Transportation hearing on Wednesday, March 7, 2012 in Washington. Photo Credit: (NASA/Bill Ingalls)
NASA Administrator Charles Bolden's cowboy boots are seen as he testifies during a U.S. Senate Committee on Commerce, Science, and Transportation hearing on Wednesday, March 7, 2012 in Washington. Photo Credit: (NASA/Bill Ingalls)