The rocket launched more than 340 times successively and successfully before it encountered an issue with its upper stage on July 11. Liftoff of the Starlink 10-9 mission happened at 1:45 a.m. EDT (0545 UTC).
It was the first failure of a Falcon 9 rocket in flight since 2015. Liftoff occurred at 7:35 p.m. PDT (10:35 p.m. EDT, 0235 UTC) from pad 4E at Vandenberg Space Force Base in California.