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KENNEDY SPACE CENTER, FLA. -- In the Space Station Processing Facility, the mission STS-120 crew members are getting familiar with the Node 2, another element to be added to the International Space Station. Seen here is Mission Specialist Douglas H. Wheelock. Node 2 will provide a passageway between three station science experiment facilities: the U.S. Destiny Laboratory, the Kibo Japanese Experiment Module, and the European Columbus Laboratory. STS-120 is targeted for launch on October 20. Photo credit: NASA/Kim Shiflett