Live coverage: Kennedy Space Center to reopen Friday

United Launch Alliance’s rocket transport ship has delivered a Delta 4-Heavy rocket to Vandenberg Air Force Base in California in preparation for launch of a U.S. government spy satellite late this year.

SpaceX called off a scheduled launch of a Falcon 9 rocket about a half-hour before liftoff from Cape Canaveral Monday due to strong upper level winds, and officials aim to try again to send 60 Starlink Internet satellites into orbit Wednesday after bypassing a planned launch attempt Tuesday due to poor weather in the offshore booster recovery area.

A brief test-firing of a Falcon 9 rocket Wednesday morning kept SpaceX on track for a launch Saturday night from Cape Canaveral with a communications satellite to be jointly used by Telesat and APT Satellite of Hong Kong.