After their arrival at KSC's Shuttle Landing Facility poses for a photo.

After their arrival at KSC's Shuttle Landing Facility, the STS-115 crew poses for a photo after talking to the media. From left are Mission Specialists Daniel Burbank, Steven MacLean, Joseph Tanner and Heidemarie Stefanyshyn-Piper; Commander Brent Jett; and Pilot Christopher Ferguson. The STS-115 crew has flown to NASA's Kennedy Space Center to take part in Terminal Countdown Demonstration Test activities. The TCDT is a pre-launch preparation that includes practicing emergency egress from the pad, driving an M-113 armored personnel carrier, and simulating the launch countdown. Launch of STS-115 is currently scheduled for Aug. 27. Photo credit: NASA/George Shelton