Shane Kimbrough takes his turn driving the armored personnel carrier at NASA's Kennedy Space Center in Florida.

Under the watchful eyes of astronaut rescue team leader Capt. George Hoggard, at left, STS-126 Mission Specialist Shane Kimbrough takes his turn driving the M-113 armored personnel carrier at NASA's Kennedy Space Center in Florida. The mission 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