A segment of a solid rocket booster from the STS-122 mission is loaded on the NASA Railroad at NASA's Kennedy Space Center.

A segment of a solid rocket booster from the STS-122 mission is loaded on the NASA Railroad at NASA's Kennedy Space Center. After a mission, the spent boosters are recovered, cleaned, disassembled, refurbished and reused after each launch. After hydrolasing the interior of each segment, they are placed on flatbed trucks. The individual booster segments are transferred to a railhead located at the railroad yard. The covered segments will be moved to Titusville for interchange with Florida East Coast Railway to begin the trip back to the Thiokol plant in Wa¬satch, Utah. Photo credit: NASA/Jack Pfaller