CAPE CANAVERAL - JULY 21: In this handout image provided by the National Aeronautics and Space Administration (NASA), NASA employees and contractors wave flags and take pictures as space shuttle ... more 
CAPE CANAVERAL - JULY 21: In this handout image provided by the National Aeronautics and Space Administration (NASA), NASA employees and contractors wave flags and take pictures as space shuttle Atlantis rolls toward the Orbiter Processing Facility at a wheels stop event at NASA's Kennedy Space Center Shuttle Landing Facility July 21, 2011 in Cape Canaveral, Florida. Space shuttle Atlantis was on a 12-day mission to the International Space Station where it delivered the Raffaello multi-purpose logistics module packed with supplies and spare parts. This was the final mission of the space shuttle program, which began on April 12, 1981 with the launch of Colombia. (Photo by Paul E. Alers/NASA via Getty Images) less 
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Getty Images | Photo By NASA / Getty Images
Thu, Jul 21, 2011 6:04 PM EDT