Live coverage: Falcon 9 disintegrates after launch

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.

The Starlink 12-22 mission was the 45 Starlink mission of the year. SpaceX launched its Falcon 9 rocket from pad 40 at Cape Canaveral Space Force Station on May 24 at 1:19 p.m. EDT (1719 UTC).

The United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral at 7:05 p.m. EDT (2305 GMT) today to send NASA’s OSIRIS-REx spacecraft on a seven-year, 4.4-billion-mile mission to rendezvous with Asteroid Bennu and bring a sample of the primordial object back to Earth. Follow the mission in our live journal.