Space Shuttle Discovery (69 images)

An overhead view of the exterior of space shuttle Discovery's crew cabin is pictured on the International Space Station on June 2, 2008. Using digital still cameras equipped with both 400 and 800 millimeter lenses, the ISS crew members took a number of photos of the shuttle's thermal protection system and sent them to teams on the ground for analysis. A 400 millimeter lens was used for this image. (UPI Photo/NASA/JSC)

STS-124 Mission Specialist Mike Fossum participates in the mission's first spacewalk of the space shuttle Discovery at the International Space Station on June 3, 2008. Visible in the reflections of his helmet visor are various components of the station, Earth's horizon and astronaut Ron Garan. (UPI Photo/NASA/JSC)

Space Shuttle Discovery's Remote Manipulator System (RMS), docking mechanism, vertical stabilizer and orbital maneuvering system (OMS) pods are featured in this image photographed by an STS-124 crew member during flight day two activities on June 1, 2008. The blackness of space and Earth's horizon provide the backdrop for the scene. (UPI Photo/NASA)

Japan Aerospace Exploration Agency (JAXA) astronaut Akihiko Hoshide, STS-124 mission specialist, prepares to eat a meal at the galley on the middeck of Space Shuttle Discovery on June 1, 2008. (UPI Photo/NASA)