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KENNEDY SPACE CENTER, FLA. -- The space shuttle Atlantis STS-122 crew receives instruction on emergency exit from the fixed service structure on Launch Pad 39A. Clockwise, from left, are Mission Specialists Leopold Eyharts and Stanley Love, Eyharts' backup Frank De Winne, Mission Specialists Leland Melvin and Hans Schlegel, Pilot Alan Poindexter, Commander Steve Frick and Mission Specialist Rex Walheim with his back to the camera. Schlegel, Eyharts and De Winne are with the European Space Agency. Eyharts will remain on the International Space Station as a flight engineer for Expedition 16 following the STS-122 mission. The STS-122 crew is at NASA's Kennedy Space Center to take part in terminal countdown demonstration test, or TCDT, activities, a standard part of launch preparations. The TCDT provides astronauts and ground crews with equipment familiarization and a simulated launch countdown before launch. On mission STS-122, Atlantis will deliver the European Space Agency's Columbus module to the International Space Station. Columbus is a multifunctional, pressurized laboratory that will be permanently attached to U.S. Node 2, called Harmony, and will expand the research facilities aboard the station. Launch is targeted for Dec. 6. Photo credit: NASA/Kim Shiflett