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KENNEDY SPACE CENTER, FLA. -- In the Orbiter Processing Facility, STS-123 Mission Specialists Richard Linnehan (left) and Garrett Reisman practice with tools that will be used on the mission. They and other crew members are at NASA's Kennedy Space Center for a crew equipment interface test, a process of familiarization with payloads, hardware and the space shuttle. Reisman will join the Expedition 16 crew on the International Space Station, replacing flight engineer Leopold Eyharts. The STS-123 mission is targeted for launch on space shuttle Endeavour on Feb. 14. It will be the 25th assembly flight of the station. Photo credit: NASA/Kim Shiflett