NASA Administrator Charlie Bolden talks to about 50 students from McNair Magnet Middle School in Rockledge Fla.

NASA Administrator Charlie Bolden talks to about 50 eighth-grade students from McNair Magnet Middle School in Rockledge, Fla., and other invited guests who are at Kennedy Space Center in Florida to watch shuttle Discovery return from space for the last time. Discovery touched down on the Shuttle Landing Facility's Runway 15 at 11:57 a.m. EST, completing 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/Jim Grossmann