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Six of the seven STS-122 mission crew members pause in front of space shuttle Atlantis after safely returning to Earth, concluding their mission to install the Columbus laboratory on the International Space Station. From left, Leland Melvin, Hans Schlegel, Stanley Love, Rex Walheim, Alan Poindexter and Stephen Frick. Photo credit: NASA/Bill Ingalls
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STS-122 Mission Specialists Rex Walheim and Hans Schlegel check the tire on space shuttle Atlantis' landing gear. Photo credit: NASA/Jack Pfaller
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Pilot Alan Poindexter, left, and Commander Steve Frick talk to Director of Mission Launch Integration LeRoy Cain and NASA Associate Administrator for Space Operations William Gerstenmaier. Photo credit: NASA/Jack Pfaller
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Mission STS-122 crew members are greeted by NASA VIPs, media and guests after exiting the crew transport vehicle. Seen front to back are Mission Specialists Leland Melvin, Rex Walheim, Hans Schlegel and Stanley Love. Photo credit: NASA/Jack Pfaller
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STS-122 Commander Steve Frick, right, and Pilot Alan Poindexter exit the crew transport vehicle after landing safely from mission STS-122. Photo credit: NASA/Jack Pfaller
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Support vehicles and personnel attend to the crew of mission STS-122 after their return from space. Photo credit: NASA/Bill Ingalls
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Space shuttle Atlantis lands at Kennedy, capping a 13-day mission to the International Space Station. Photo Credit: NASA/Bill Ingalls
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Space shuttle Atlantis touches down on Runway 15 of the Shuttle Landing Facility at NASA's Kennedy Space Center on Feb. 20. The crew installed the new Columbus laboratory during their 12 day mission to the International Space Station. Photo credit: NASA/Jack Pfaller
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Space shuttle Atlantis kicks up dust as it touches down on Runway 15 of the Shuttle Landing Facility at NASA's Kennedy Space Center on Feb. 20. Photo credit: NASA/Chris Lynch
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NASA Manager for Launch Integration, Leroy Cain, left, and NASA Associate Administrator for Space Operations, William H. Gerstenmaier, watch as Atlantis touches down. Photo Credit: NASA/Bill Ingalls