On Launch Pad 39A at NASA's Kennedy Space Center learn about emergency exit procedures.

On Launch Pad 39A at NASA's Kennedy Space Center in Florida, STS-127 crew members learn about emergency exit procedures from the launch pad. At left are Mission Specialists Christopher Cassidy and Julie Payette (behind him). At center are Commander Mark Polansky and Mission Specialist Dave Wolf. At right are Mission Specialists Tom Marshburn and Tim Kopra. The crew is at Kennedy for a launch dress rehearsal called the terminal countdown demonstration test, or TCDT, which includes emergency exit training and equipment familiarization. Endeavour's STS-127 mission is the final of three flights dedicated to the assembly of the Japanese Kibo laboratory complex on the International Space Station. Endeavour's launch is targeted for June 13. Photo credit: NASA/Kim Shiflett