On a tow from NASA's Shuttle Landing Facility the orbiter Discovery rolls toward the Orbiter Processing Facility.

On a two-mile tow from NASA's Shuttle Landing Facility, the orbiter Discovery rolls toward the Orbiter Processing Facility. Umbilical lines for coolant and purge air are still attached. Discovery landed at the SLF at 9:14 a.m. EDT, completing mission STS-121. Discovery traveled 5.3 million miles, landing on orbit 202. Mission elapsed time was 12 days, 18 hours, 37 minutes and 54 seconds. Main gear touchdown occurred on time at 9:14:43 EDT. Wheel stop was at 9:15:49 EDT. During the mission, the STS-121 crew tested new equipment and procedures to improve shuttle safety, and delivered supplies and made repairs to the International Space Station. Photo courtesy of Nikon/Scott Andrews