Processing Facility Bay 3 Discovery is ready for the Orbiter Transport System to be rolled in underneath.

In Orbiter Processing Facility Bay 3 at NASA’s Kennedy Space Center, space shuttle Discovery is ready for the Orbiter Transport System, or OTS (left), to be rolled in underneath. The OTS will help move the orbiter on its rollover to the Vehicle Assembly Building. Discovery is targeted to launch May 31 on the STS-124 mission to the International Space Station. On the mission, Discovery will transport the Kibo Japanese Experiment Module - Pressurized Module (JEM-PM) and the Japanese Remote Manipulator System (JEM-RMS) to the space station to add to the Kibo laboratory. Photo credit: NASA/Troy Cryder