Live coverage: Falcon 9 disintegrates after launch

Liftoff of a previously-flown Falcon 9 rocket from NASA’s Kennedy Space Center with a European-built television broadcast satellite has been pushed back from Saturday until at least next Wednesday night, officials said.

Astronauts Doug Hurley and Bob Behnken undocked from the International Space Station Saturday aboard a Crew Dragon capsule, heading for a parachute-assisted splashdown Sunday in the Gulf of Mexico to wrap up a 64-day test flight of SpaceX’s commercial human-rated spaceship.

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.