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CAPE CANAVERAL, Fla. – Led by security, the Astrovan (center) with the STS-126 crew members aboard travels the road to Launch Pad 39A at NASA's Kennedy Space Center in Florida. At right is one of the crawler transporters on the crawlerway. The crew will take part in a simulated launch countdown at the pad. The White Room is at the end of the orbiter access arm and provides entry into the shuttle. The crew is at Kennedy to take part in the Terminal Countdown Demonstration Test, which includes equipment familiarization, emergency exit training and the simulated countdown. On the STS-126 mission, space shuttle Endeavour's crew will deliver equipment and supplies to the International Space Station in preparation for expansion from a three- to six-person resident crew aboard the complex. The mission also will include four spacewalks to service the station’s Solar Alpha Rotary Joints. Endeavour is targeted to launch Nov. 14. Photo credit: NASA/Troy Cryder