Photos: Atlas 5 rocket soars from West Coast

SpaceX launched the Starlink 3-5 mission from California Thursday morning, following a last-minute abort Wednesday due to concerns about landing of the Falcon 9 rocket’s first stage booster on a drone ship in the Pacific Ocean. The Falcon 9 rocket lifted off from Vandenberg Space Force Base at 6:40 a.m. PDT (9:40 a.m. EDT; 1340 UTC) with 46 Starlink internet satellites.

United Launch Alliance scrubbed the launch of a Delta 4-Heavy rocket Wednesday night less than 10 seconds before liftoff from Cape Canaveral, the second such abort suffered by this mission.. The launch of a classified National Reconnaissance Office spy satellite is expected to be delayed at least several more days as engineers assess the cause of Wednesday’s last-minute abort.

A 151-foot-tall Soyuz launcher climbed into space from French Guiana on Thursday with the Boeing-built SES 15 communications satellite bound for an operating position over the Americas in geostationary orbit.