SpaceX Pushes Launch of NRO Satellite Atop Falcon 9 Rocket to Saturday Written 18 December 2020

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A SpaceX Falcon 9 rocket sits on the launch pad at Launch Complex 39A, Nov. 13, 2020, Cape Canaveral, FL. | Credit: Chris O'Meara; Associated Press–©

Spaceflight Now reports that on Thursday, SpaceX scrubbed the launch of a Falcon 9 rocket “to evaluate a ‘slightly high’ pressure reading in the rocket’s upper stage liquid oxygen tank.” A “sensor reading on the Falcon 9’s upper stage triggered an ‘auto-abort’ at T-minus 1 minute, 53 seconds, as SpaceX counted down to a planned liftoff from the Kennedy Space Center at 9:45 a.m. EST (1445 GMT) Thursday.” The mission to deliver a National Reconnaissance Office payload to orbit is now scheduled to launch Saturday morning. 
Full Story (Spaceflight Now)