Live coverage: Europe’s next environmental sentinel lifts off

SpaceX called off a planned launch attempt Saturday to deploy the next batch of satellites for the Starlink broadband network. Two commercial Earth-observing satellites for BlackSky are also awaiting a ride into orbit on the Falcon 9 rocket from pad 39A at the Kennedy Space Center in Florida.

SpaceX called off the planned launch of a Falcon 9 rocket Friday at Cape Canaveral, halting the countdown less than a minute before liftoff to allow time to perform additional ground system checkouts before the mission’s next launch opportunity no earlier than Sunday.

The next launch of a SpaceX Falcon Heavy rocket has been delayed from July to October to await the readiness of its U.S. military payload, and the following Falcon Heavy flight has been rescheduled from late this year to some time in 2022, military officials said.