In this photo provided by NASA, the space shuttle Discovery is suspended from a sling held by two cranes after the Boeing 747 carrier backed away at Washington Dulles International Airport, Thursday, ... more 
In this photo provided by NASA, the space shuttle Discovery is suspended from a sling held by two cranes after the Boeing 747 carrier backed away at Washington Dulles International Airport, Thursday, April 19, 2012, in Sterling, Va. NASA will transfer Discovery into its new home at the Smithsonian's National Air and Space Museum annex. (AP Photo/NASA, Bill Ingalls) MANDATORY CREDIT less 
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Associated Press | Photo By NASA, Bill Ingalls
Thu, Apr 19, 2012 3:28 PM EDT