The crew members are checking the fit of their launch and entry suits before tomorrow's simulated launch countdown.

The STS-115 crew members are checking the fit of their launch and entry suits before tomorrow's simulated launch countdown. Checking his glove is Mission Specialist Steven MacLean, who represents the Canadian Space Agency. The simulation is the culmination of Terminal Countdown Demonstration Test activities at NASA's Kennedy Space Center. The crew is getting ready for their launch on Space Shuttle Atlantis, scheduled to take place in a window that opens Aug. 27. During the 11-day mission to the International Space Station, the STS-115 crew will continue construction of the station and install their cargo, the Port 3/4 truss segment with its two large solar arrays. Photo credit: NASA/Cory Huston