Video highlights of the 50th Atlas 5 flight. The United Launch Alliance rocket carried the eighth Global Positioning System (GPS 2F-8) satellite for the U.S. Air Force. Launch occurred on-time at 1:21 p.m. EDT from Cape Canaveral’s launch complex 41. Video: United Launch Alliance.
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Delta 4
Live coverage: Delta 4-Heavy launch scrubbed again
United Launch Alliance called off the planned liftoff of a Delta 4-Heavy rocket and a classified National Reconnaissance Office spy satellite from Vandenberg Air Force Base in California on Wednesday after indications of elevated hydrogen concentrations around one of the launcher’s main engines. Three previous launch attempts were scrubbed by technical concerns and bad weather.