On Launch Pad 39A one of Endeavour's payload bay doors is closed.

On Launch Pad 39A, one of Endeavour's payload bay doors is closed. Part of the cargo inside can still be seen in the center: the SPACEHAB module and the S5 truss. The payload bay doors were opened to allow for payload closeouts, including camera tests on the shuttle robotic arm and the extension, known as the orbiter boom sensor system. Endeavour is scheduled to launch Aug. 7 on mission STS-118, the 22nd flight to the International Space Station. NASA/Charisse Nahser