ESA astronaut Thomas Reiter joins fellow STS-121 crewmembers, Mission Specialists Piers Sellers, Stephanie Wilson, in the slidewire basket on Launch Pad 39B. The crew is at NASA's Kennedy Space Centre, in Florida, for Terminal Countdown Demonstration Test activities. Over several days, the crew will practice emergency egress from the pad and suit up in their orange flight suits for the simulated countdown to launch. Space Shuttle Discovery is designated to launch on the STS-121 mission to the ISS in July.