The crew of space shuttle Discovery, clock wise from left, pilot Eric Boe, mission specialist's Alvin Drew, Nicole Stott, Michael Barratt, Steve Bowen and commander Steve Lindsey, leave the Operations... more 
The crew of space shuttle Discovery, clock wise from left, pilot Eric Boe, mission specialist's Alvin Drew, Nicole Stott, Michael Barratt, Steve Bowen and commander Steve Lindsey, leave the Operations and Checkout Building to be transported to Pad 39A to prepare for launch at the Kennedy Space Center in Cape Canaveral, Fla., Thursday, Feb. 24, 2011. less 
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Associated Press | Photo By John Raoux
Fri, Feb 25, 2011 5:44 PM EST