Update, 5:50 p.m. ET Wednesday: ULA was forced to stand down from this evening’s launch attempt due to hardware issues with the liquid oxygen system at Launch Complex 41. The next attempt has been scheduled for no earlier than 48 hours. See our full launch schedule here.
Follow live as United Launch Alliance targets 5:54 p.m. Wednesday for the launch of an Atlas V rocket from Cape Canaveral Air Force Station, the opening of a roughly two-hour window.
On board is a secretive intelligence-gathering satellite owned by the National Reconnaissance Office, which operates the U.S. fleet of clandestine spacecraft. Launch Complex 41 is hosting the attempt.
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