Live coverage: Proton blasts off on return-to-flight mission

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.

A new four-stage rocket operated by the Chinese launch company Galactic Energy succeeded on its inaugural flight Saturday, delivering a data relay microsatellite to an orbit 300 miles above Earth.

Ground crews took steps this week to prepare for the next Falcon 9 launch, set for no earlier than Jan. 30 with a telecom satellite for SES and the Luxembourg government, as SpaceX officials stressed their rocket was not to blame for the rumored loss of a mysterious U.S. government payload after liftoff Sunday.