Vera Rubin Observatory

Sixty more satellites for SpaceX’s Starlink broadband network launched Monday on a Falcon 9 rocket from Cape Canaveral, bringing the total number of Starlink platforms deployed in orbit since last May to 300.

SpaceX test-fired its next Falcon 9 rocket Friday ahead of a planned launch Monday from Cape Canaveral with 60 more Starlink Internet satellites, days after an international group sounded another warning about the effects of large satellite fleets on astronomy.