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

The U.S. military’s next GPS navigation satellite was ready for launch from Cape Canaveral at 9:43 p.m. EDT Friday (0143 GMT Saturday) aboard a SpaceX Falcon 9 rocket. But SpaceX aborted the countdown just two seconds prior to liftoff.

SpaceX launched 60 more Starlink satellites from the Kennedy Space Center at 7:29 a.m. EDT (1129 GMT) Tuesday aboard a Falcon 9 rocket. Meanwhile, the launch of another SpaceX rocket a few miles away with a GPS satellite has been postponed indefinitely after a countdown abort moments before liftoff Friday night.

A SpaceX Falcon 9 rocket took off from NASA’s Kennedy Space Center in Florida at 8:25 a.m. EDT (1225 GMT) with 60 more Starlink internet satellites. SpaceX successfully recovered the first stage booster on a drone ship in the Atlantic Ocean.