File photo of a SpaceX’s Falcon 9 at Vandenberg Space Force Base, California. Credit: SpaceX
A SpaceX Falcon 9 rocket is scheduled to launch 21 Starlink satellites from Vandenberg Space Force Base in California at 12:47 a.m. PDT (3:47 a.m. EDT, 0747 UTC). It is the first of two Starlink delivery missions planned for Saturday.