Space Shuttle Atlantis mounted on a mobile launch platform rolls to Launch Pad 39A atop a crawler transporter.

Space Shuttle Atlantis, mounted on a mobile launch platform, rolls to Launch Pad 39A atop a crawler transporter at dawn. First motion was at 5:02 a.m. EDT. In late February, Atlantis' external tank received hail damage during a severe thunderstorm that passed through the Kennedy Space Center Launch Complex 39 area. The hail caused visible divots in the giant tank's foam insulation, as well as minor surface damage to about 26 heat shield tiles on the shuttle's left wing. The launch of Space Shuttle Atlantis on mission STS-117 is now targeted for June 8. A flight readiness review will be held on May 30 and 31. Photo credit: NASA/Troy Cryder