The STS-126 crew poses for a photo in front of the M-113 armored personnel carrier they practiced driving.

At NASA's Kennedy Space Center in Florida, the STS-126 crew poses for a photo in front of the M-113 armored personnel carrier they practiced driving. From left are Mission Specialists Sandra Magnus, Shane Kimbrough, Steve Bowen, Heidemarie Stefanyshyn-Piper and Donald Pettit; Commander Chris Ferguson; and Pilot Eric Boe. The crew is at Kennedy for pre-launch preparation known as Terminal Countdown Demonstration Test, or TCDT. The training provides astronauts and ground crews with an opportunity to participate in various simulated countdown activities, including equipment familiarization and a simulated launch 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/Kim Shiflett