In the Vehicle Assembly Building the tank for space shuttle Discovery is being lowered into high bay 3.

In the Vehicle Assembly Building at NASA's Kennedy Space Center, the external tank for space shuttle Discovery is being lowered into high bay 3. The tank will be mated to the solid rocket boosters waiting below on the mobile launcher platform. 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/Kim Shiflett