Mission Specialist Ron Garan examines the tiles on the underbelly of Discovery in the Orbiter Processing Facility bay 2 at NASA's Kennedy Space Center.

STS-124 Mission Specialist Ron Garan examines the tiles on the underbelly of space shuttle Discovery in the Orbiter Processing Facility bay 2 at NASA's Kennedy Space Center. Members of the crew are at Kennedy for a crew equipment interface test. 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 International Space Station to complete the Kibo laboratory. The launch of Discovery is targeted for April 24. Photo credit: NASA/Kim Shiflett