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CAPE CANAVERAL, Fla. - Under the watchful eyes of astronaut rescue team leader Capt. George Hoggard, at left, STS-126 Mission Specialist Heidemarie Stefanyshyn-Piper takes her turn driving the M-113 armored personnel carrier at NASA's Kennedy Space Center in Florida. Piper and the other crew members are 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…
