Processing Facility Bay 3 at NASA's Kennedy Space Center a worker observes space shuttle Discovery's payload bay.

In Orbiter Processing Facility Bay 3 at NASA's Kennedy Space Center, a worker observes space shuttle Discovery's payload bay as the doors are closed. Discovery is the designated vehicle on the STS-124 mission to the International Space Station. On the mission, the shuttle will transport the Kibo Japanese Experiment Module - Pressurized Module and the Japanese Remote Manipulator System. The payload will be installed at the launch pad. Launch is targeted for May 25. Photo credit: NASA/Chris Rhodes