Live coverage: 400th Proton rocket takes off with Russian satellite

SpaceX conducted a final Launch Readiness Review on Monday ahead of the scheduled liftoff Wednesday of NASA astronauts Doug Hurley and Bob Behnken on a test flight of the Crew Dragon spacecraft to the International Space Station. Launch remains set for 4:33:33 p.m. EDT (2033:33 GMT) Wednesday, weather permitting.

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.

A previously-flown SpaceX Falcon 9 rocket booster conducted a test-firing Monday at NASA’s Kennedy Space Center in Florida, ahead of a planned launch Oct. 7 with an Airbus-built communications satellite made for SES and EchoStar.