KENNEDY SPACE CENTER, FLA. - Dressed in clean-room suits are STS-120 Commander Pamela A. Melroy (left) and Mission Specialist Stephanie D. Wilson (center), getting ready to get into the bucket that will lower them into Discovery's payload bay in bay 3 of the Orbiter Processing Facility. The STS-120 crew is at Kennedy for a crew equipment interface test, or CEIT, which includes harness training, inspection of the thermal protection system and camera operation for planned extravehicular activities, or EVAs. The STS-120 mission will deliver the Harmony module, christened after a school contest, which will provide attachment points for European and Japanese laboratory modules on the International Space Station. Known in technical circles as Node 2, it is similar to the six-sided Unity module that links the U.S. and Russian sections of the station. Built in Italy for the United States, Harmony will be the first new U.S. pressurized component to be added. The STS-120 mission is targeted to launch on Oct. 20. Photo credit: NASA/George Shelton