Bill Gerstenmaier greets the crew members as they exit after landing at NASA's Kennedy Space Center aboard Discovery.

Bill Gerstenmaier, associate administrator for Space Operations, greets the STS-133 crew members as they exit the crew transport vehicle after landing at NASA's Kennedy Space Center in Florida aboard space shuttle Discovery. Leading the crew is Commander Steve Lindsey, followed by Pilot Eric Boe, and Mission Specialists Alvin Drew, Steve Bowen, Michael Barratt and Nicole Stott. Touchdown on the Shuttle Landing Facility's Runway 15 was at 11:57 a.m. EST, bringing an end to the 13-day STS-133 mission to the International Space Station.

Discovery and its six-member crew delivered the Permanent Multipurpose Module, packed with supplies and critical spare parts, as well as Robonaut 2, the dexterous humanoid astronaut helper, to the orbiting outpost. STS-133 was Discovery's 39th and final mission. This was the 133rd Space Shuttle Program mission and the 35th shuttle voyage to the space station. Photo credit: NASA/Kim Shiflett