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 launched a Falcon 9 rocket at 3:01 p.m. EDT (1901 GMT) Tuesday from NASA’s Kennedy Space Center in Florida, carrying 60 more Starlink satellites into orbit. SpaceX successfully landed the Falcon 9 booster on a drone ship offshore.

Working around the clock to meet a 12-day launch window in March, European engineers are putting the final touches on a Mars orbiter that could shed light on whether tiny microbes or geologic activity still linger on the barren planet.