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KENNEDY SPACE CENTER, FLA. -- After the mission STS-122 crew's arrival at NASA's Kennedy Space Center, Mission Specialist Leopold Eyharts is introduced during a media opportunity on the Shuttle Landing Facility. Eyharts, who represents the European Space Agency, will remain on the International Space Station while Atlantis returns flight engineer Daniel Tani. The crew's arrival signals the imminent launch of space shuttle Atlantis on mission STS-122. The launch countdown begins at 7 p.m. Dec. 3. Launch is scheduled for 4:31 p.m. EST on Dec. 6. Endeavour will carry the Columbus Lab, Europe's largest contribution to the construction of the International Space Station. It will support scientific and technological research in a microgravity environment. Columbus, a program of ESA, is a multifunctional, pressurized laboratory that will be permanently attached to Node 2 of the space station to carry out experiments in materials science, fluid physics and biosciences, as well as to perform a number of technological applications. Photo credit: NASA/Kim Shiflett