KENNEDY SPACE CENTER, FLA. - During the traditional post-flight walk-around after the landing of an orbiter, NASA Administrator Mike Griffin (right) congratulates STS-121 Mission Specialist Michael Fossum on the successful mission. Fossum participated in three spacewalks, along with Mission Specialist Piers Sellers, to repair and replace equipment. Next to Fossum are Pilot Mark Kelly, Mission Specialist Lisa Nowak and (behind Griffin) Commander Steven Lindsey. Discovery's smooth and perfect landing was on time at 9:14 a.m. EDT on Runway 15 of NASA's Shuttle Landing Facility after traveling 5.3 million miles on 202 orbits. Mission elapsed time was 12 days, 18 hours, 37 minutes and 54 seconds. The landing is the 62nd at Kennedy Space Center and the 32nd for Discovery. Photo credit: NASA/Kim Shiflett