Live coverage: Falcon 9 disintegrates after launch

The touchdown of booster 1075 marked SpaceX’s 450th Falcon booster landing. Liftoff from pad 4 East happened at 3:32 p.m. PDT (6:32 p.m. EDT, 2232 UTC).

SpaceX’s rideshare program has launched more 1,000 smallsats for more than 130 customers. Liftoff from Vandenberg Space Force Base happened at 11:56 a.m. PDT (2:56 p.m. EDT, 1856 UTC).

Technicians working at launch pad 0A at NASA’s Wallops Flight Facility in Virginia completed the final loading of cargo into Northrop Grumman’s Cygnus supply ship late Tuesday, and the Antares rocket was raised vertical again in preparation for Wednesday’s countdown.