Falcon 9

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.

The overnight mission saw the return of Falcon 9 booster, tail number B1073, which experienced an abort as its engine began firing during the June 14 launch attempt of the Starlink 10-2 mission. Liftoff from pad 40 at Cape Canaveral Space Force Station was at 4:55 a.m. EDT (0855 UTC).