NASA Administrator Charles Bolden is seen in silhouette, left, as he shook hands with workers atop the Mobile Launch Platform as space shuttle Atlantis rolled out of High Bay 3 in the Vehicle Assembly Building to Launch Pad 39A for its final flight, Tuesday, May 31, 2011, at Kennedy Space Center in Cape Canaveral, Fla.
NASA Administrator Charles Bolden is seen in silhouette, left, as he shook hands with workers atop the Mobile Launch Platform as space shuttle Atlantis rolled out of High Bay 3 in the Vehicle Assembly Building to Launch Pad 39A for its final flight, Tuesday, May 31, 2011, at Kennedy Space Center in Cape Canaveral, Fla. The 3.4-mile trek, known as rollout, took about seven hours to complete. On STS-135, the orbiter’s final, Atlantis will carry the Raffaello multipurpose logistics module to deliver supplies and spare parts to the International Space Station. The launch of STS-135 is targeted for July 8.Image Credit: NASA/Bill Ingalls