After their return the STS-115 crew is welcomed by NASA and KSC officials.

After their return from space, the STS-115 crew is welcomed by NASA and KSC officials. The crew members, from left, are Mission Specialists Joseph Tanner and Heidemarie Stefanyshyn-Piper; Pilot Christopher Ferguson; Mission Specialist Steven MacLean; Commander Brent Jett; and Mission Specialist Daniel Burbank. At right are NASA Administrator Michael Griffin, Deputy Associate Administrator for Space Operations Lynn Cline, and a representative of the Canadian Space Agency. During the mission, astronauts completed three spacewalks to attach the P3/P4 integrated truss structure to the International Space Station. Main gear touchdown was at 6:21:30 a.m. EDT. Nose gear touchdown was at 6:21:36 a.m. and wheel stop was at 6:22:16 a.m. At touchdown -- nominally about 2,500 ft. beyond the runway threshold -- the orbiter is traveling at a speed ranging from 213 to 226 mph. Atlantis traveled 4.9 million miles, landing on orbit 187. Mission elapsed time was 11 days, 19 hours, six minutes. This is the 15th night landing at KSC and the 23rd night landing overall. Photo credit: NASA/Kim Shiflett