In the Orbiter Processing Facility at NASA's Kennedy Space Center, workers prepare space shuttle Discovery's payload bay for payload installation. The launch of Discovery on its STS-124 mission is targeted for April 24. On the right side is the shuttle's robotic arm. On the mission, Discovery will transport the Kibo Japanese Experiment Module - Pressurized Module and the Japanese Remote Manipulator System to the International Space Station. Photo credit: NASA/Kim Shiflett