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.

Look back on the May 30 launch of a Russian Proton rocket from the Baikonur Cosmodrome in Kazakhstan with this gallery of photos showing the 19-story launcher climbing into the sky with the Yamal 601 communications satellite.

A Falcon 9 rocket is being readied for a space station resupply mission at Kennedy Space Center’s launch pad 39A . The rocket is scheduled to launch at 10:01 a.m. EST (1501 GMT) on Saturday, weather permitting. Watch live coverage.