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KENNEDY SPACE CENTER, FLA. - Launch Pad 39B and Space Shuttle Atlantis glow in the dusk after the morning launch was scrubbed due to a technical concern. Atlantis was scheduled to launch at 11:41 a.m. EDT Sept. 8 but was scrubbed due to an issue with a fuel cut-off sensor system inside the external fuel tank. This is one of several systems that protect the shuttle's main engines by triggering their shutdown if fuel runs unexpectedly low. This mission is the 116th space shuttle flight, the 27th flight for orbiter Atlantis, and the 19th U.S. flight to the International Space Station. STS-115 is scheduled to last 11 days with a planned landing at KSC. Photo credit: NASA/Ken Thornsley