Live coverage: Atlas 5 countdown and launch journal

United Launch Alliance is pushing back its next Atlas 5 launch from Cape Canaveral until no earlier than Aug. 8, allowing time for engineers to ensure an unspecified anomaly during component testing at a supplier will have no impact on the Atlas 5’s mission to place a U.S. Air Force communications satellite into orbit.

Launching the U.S. Navy’s fifth MUOS mobile communications satellite, a United Launch Alliance Atlas 5 rocket thundered away from Cape Canaveral today.

An Atlas 5 rocket lifts off from launch complex 41 at Cape Canaveral carrying the SBIRS GEO-4 missile early warning satellite in this video shot from the Kennedy Space Center Press Site.