STS_135_Pad

Thermal protection tiles are seen on the underside of the space shuttle Atlantis on Launch Pad 39A  is at the Kennedy Space Center on Tuesday, May 31, 2011, in Florida.  The orbiter is scheduled to fly the final mission of the shuttle program, launching on July 8. ( NASA Photo / Houston Chronicle, Smiley N. Pool ).

JSC2011-E-059495 (31 May 2011) --- Thermal protection tiles are seen on the underside of the space shuttle Atlantis on Launch Pad 39A at NASA?s Kennedy Space Center in Florida May 31, 2011. The orbiter is scheduled to fly the final mission of the Space Shuttle Program, launching on July 8. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool