Live coverage: SpaceX prepares for next Falcon 9 launch

In a fiery, dramatic comeback for SpaceX, a Falcon 9 rocket took off from Cape Canaveral, streaking into orbit as its booster stage returned to a historic landing on Florida’s Space Coast in a key achievement aimed at slashing the cost of space transportation. Eleven communications satellites for Orbcomm were deployed in orbit in the flight’s prime objective.

Japanese officials halted a countdown Monday at the Tanegashima Space Center when teams overseeing preparations for launch of an H-2A rocket detected a nitrogen gas leak, prompting the return of the launcher and its Japanese government payload to a nearby assembly building for repairs.

SES announced Thursday it has tapped SpaceX for two additional Falcon 9 rocket launches from Cape Canaveral to deliver more Boeing-built O3b mPower broadband satellites into orbit, adding to a pair of Falcon 9 flights ordered by SES last year to launch the first batch of mPower platforms beginning in late 2021.