Live coverage: SpaceX readies Falcon 9 for fifth Starlink mission

A United Launch Alliance Atlas 5 rocket lifted off from Vandenberg Air Force Base in California at 9:49:51 a.m. local time (12:49:51 p.m. EST; 1749:51 today to deploy a covert U.S. national security payload. Follow the ascent in our live journal.

After several delays to wait for improved weather, SpaceX sent a Falcon 9 rocket into space Saturday from California’s Central Coast with 51 small satellites, payloads, and orbital transfer vehicles from customers around the world.

SpaceX’s first human-rated Crew Dragon spacecraft took off Saturday from historic launch pad 39A at the Kennedy Space Center in Florida, launching NASA astronauts Doug Hurley and Bob Behnken on the first piloted orbital space mission from a U.S. spaceport in nearly a decade.