President Barack Obama, center, back to camera, shakes hands with NASA Administrator Charles Bolden, right, as U.S. Sen. Bill Nelson, D-Fla., looks on prior to Obama's speech outlining the bold new course the administration is charting to maintain U.S. leadership in human space flight at the NASA Kennedy Space Center in Cape Canaveral, Fla. on Thursday, April 15, 2010. Photo Credit: (NASA/Paul E. Alers)