Live coverage: Falcon 9 disintegrates after launch

SES, the international communications satellite operator, plans to send two more C-band television broadcasting spacecraft into orbit from Cape Canaveral Friday night atop a SpaceX Falcon 9 rocket on a mission that will help clear spectrum for transition to 5G network services.

Working overnight on Florida’s Space Coast, SpaceX technicians transferred a two-stage Falcon 9 rocket from the company’s commercial hangar a quarter-mile up the ramp to launch pad 39A early Saturday, positioning the kerosene-fueled booster for liftoff Sunday with a classified payload for the U.S. government’s National Reconnaissance Office.

SpaceX’s next Falcon 9 rocket is being readied for liftoff Aug. 14 on a space station resupply run. The two-stage rocket completed a hold-down engine firing Thursday at launch pad 39A at NASA’s Kennedy Space Center in Florida.