A tow vehicle prepares to offload external tank No. 128 from the Pegasus barge in the Launch Complex 39 Area at NASA's Kennedy Space Center.

A tow vehicle prepares to offload external tank No. 128 from the Pegasus barge in the Launch Complex 39 Area at NASA's Kennedy Space Center. The tank is scheduled for space shuttle Discovery's STS-124 mission. After offloading, the tank will be transported to the Vehicle Assembly Building. On the STS-124 mission, Discovery will transport the Kibo Japanese Experiment Module - Pressurized Module and the Japanese Remote Manipulator System to the International Space Station. Discovery is targeted for launch on May 25. Photo credit: NASA/Dimitri Gerondidakis