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epa02834981 Space shuttle Atlantis viewed from the roof of the Vehicle Assembly Building (VAB) moves from the Shuttle Landing Facility (SLF) to the Orbit Processing Facility (OPF) bay 2, Kennedy Space Center, Florida, USA, 21 July 2011. Atlantis returned to Earth for the final time on the final mission (STS-135) of the NASA Space Shuttle Program after completing a 13-day mission to outfit the International Space Station with supplies for the nest year. Atlantis carried almost 10,000 pounds of supplies, logistics and spare parts in the Raffaello multipurpose logistics module to the station. The now 13-day mission also is flying a system to investigate the potential for remote-controlled robotic refueling of satellites and spacecraft in orbit. STS-135 is the 37th shuttle mission to the station. EPA/GARY I ROTHSTEIN