CAPE CANAVERAL, FL - JUNE 20: Shuttle Atlantis mission STS-135 Astronauts Mission Specialist (L-R) Sandra Magnus, Pilot Doug Hurley, Commander Chris Ferguson, and Mission Specialist Rex Walheim arrive... more 
CAPE CANAVERAL, FL - JUNE 20: Shuttle Atlantis mission STS-135 Astronauts Mission Specialist (L-R) Sandra Magnus, Pilot Doug Hurley, Commander Chris Ferguson, and Mission Specialist Rex Walheim arrive at the Shuttle Landing Facility at KSC For Terminal Countdown Demonstration Test, a dress rehearsal for their July launch, June 20, 2011 in Cape Canaveral, Florida. Shuttle Atlantis is the last of the program after this mission the Shuttle program will come to an end. (Photo by Roberto Gonzalez/Getty Images) less 
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Getty Images | Photo By Roberto Gonzalez / Getty Images
Mon, Jun 20, 2011 7:37 PM EDT