NASA Administrator Charles Bolden speaks at the NASA Tech Day on the Hill event in the Rayburn House Office Building on Capitol Hill, Wednesday, March 28, 2012, in Washington.Image Credit: NASA/Paul E. Alers
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NASA Administrator Charles Bolden speaks at the NASA Tech Day on the Hill event in the Rayburn House Office Building on Capitol Hill, Wednesday, March 28, 2012, in Washington.Image Credit: NASA/Paul E. Alers