KSC-08pd1241

CAPE CANAVERAL, Fla. -- The STS-124 crew heads to the Astrovan for the ride to Launch Pad 39A at NASA's Kennedy Space Center for a simulated launch countdown. From left are Mission Specialists Akihiko Hoshide, Ron Garan, Greg Chamitoff and Mike Fossum, Pilot Ken Ham, Mission Specialist Karen Nyberg and Commander Mark Kelly. The simulation is part of the launch dress rehearsal called the terminal countdown demonstration test. TCDT provides astronauts and ground crews with an opportunity to participate in various simulated countdown activities, including equipment familiarization and emergency training. On the STS-124 mission, the crew will deliver and install the Japanese Experiment Module – Pressurized Module and Japanese Remote Manipulator System. Discovery's launch is targeted for May 31. Photo credit: NASA/Kim Shiflett