The crew gets instructions about using the slidewire baskets for emergency egress from the space shuttle on the pad.

The STS-115 crew gets instructions about using the slidewire baskets for emergency egress from the space shuttle on the pad. From left are Commander Brent Jett and Mission Specialists Steven MacLean, Heidemarie Stefanyshyn-Piper and Joseph Tanner. MacLean is with the Canadian Space Agency. Not pictured are Pilot Chris Ferguson and Mission Specialist Daniel Burbank. The mission crew is at KSC for Terminal Countdown Demonstration Test (TCDT) activities that are preparation for launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27. During their 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and attach the payload elements, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston