STS-135 Launch Countdown

A dragonfly is seen at the edge of the lagoon near pad 39a and the space shuttle Atlantis on Wednesday, July 6, 2011 at the NASA Kennedy Space Center in Cape Canaveral, Fla.  Space shuttle Atlantis is set to liftoff Friday, July 8, on the final flight of the shuttle program, STS-135, a 12-day mission to the International Space Station.  Photo Credit: (NASA/Bill Ingalls)

A dragonfly is seen at the edge of the lagoon near pad 39a and the space shuttle Atlantis on Wednesday, July 6, 2011 at the NASA Kennedy Space Center in Cape Canaveral, Fla. Space shuttle Atlantis is set to liftoff Friday, July 8, on the final flight of the shuttle program, STS-135, a 12-day mission to the International Space Station. Photo Credit: (NASA/Bill Ingalls)