The STS-126 crew poses for a photo before answering questions from the media about their mission.

On Launch Pad 39A at NASA's Kennedy Space Center in Florida, the STS-126 crew poses for a photo before answering questions from the media about their mission. From left are Commander Chris Ferguson, Pilot Eric Boe and Mission Specialists Steve Bowen, Heidemarie Stefanyshyn-Piper, Donald Pettit, Sandra Magnus and Shane Kimbrough. Behind them is space shuttle Endeavour. The crew is at Kennedy to take part in the Terminal Countdown Demonstration Test, which includes equipment familiarization, emergency exit procedures 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