Watch conditions at Kennedy Space Center during Tropical Storm Isaias

Two veteran NASA astronauts rocketed away from the Kennedy Space Center in Florida on Saturday to begin a test flight of a new commercial spaceship designed, built and owned by SpaceX.

Days after SpaceX opened preorders for Starlink internet service, two more Falcon 9 rockets are set to launch from Florida’s Space Coast as soon as Sunday night and Wednesday morning — weather permitting — to help push the network closer to commercial operations.

Live coverage of the countdown and launch of a SpaceX Falcon 9 rocket from NASA’s Kennedy Space Center with the Koreasat 5A communications satellite. Including a live view of the launch pad (members only).