Live coverage: Falcon 9 disintegrates after launch

The launch of SpaceX’s next resupply mission to the International Space Station has been rescheduled for no earlier than Dec. 19 to make sure the Falcon 9 rocket and Dragon supply ship are ready for flight.

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.

Mostly clear skies and brisk westerly winds are forecast at launch time Friday afternoon for SpaceX’s first resupply mission to the International Space Station in nearly a year.