Tracy Caldwell practices using a video camera to film the external tank solid rocket booster stack on Space Shuttle Endeavour.

Near Launch Pad 39A, STS-118 Mission Specialist Tracy Caldwell practices using a video camera to film the external tank/solid rocket booster stack on Space Shuttle Endeavour. Caldwell will capture the separation of the tank from Endeavour after launch. The STS-118 crew is at Kennedy to take part in Terminal Countdown Demonstration Test activities, including M-113 training, payload familiarization, emergency egress training at the pad and a simulated launch countdown. The payload aboard Space Shuttle Endeavour includes the S5 truss, a SPACEHAB module and external stowage platform 3. The STS-118 mission is the 22nd flight to the International Space Station and is targeted for launch on Aug. 7. NASA/George Shelton