Live coverage: Ariane 5 blasts off with two Intelsat satellites

Debuting lighter structural components to carry heavier satellites into orbit, a Russian Proton rocket fired into space from Kazakhstan on Thursday and successfully placed a U.S.-built television broadcast craft into orbit for Intelsat and DirecTV.

A SpaceX Falcon 9 rocket lifted off from Cape Canaveral at 7:10 p.m. EST Monday (0010 GMT Tuesday) with the JCSAT 18/Kacific 1 communications satellite, heading for a position in geostationary orbit to beam broadband signals across the Asia-Pacific. The launcher deployed the satellite into an on-target orbit, and the first stage returned to land on SpaceX’s drone ship in the Atlantic Ocean.

A hydrogen-fueled main engine and four solid rocket boosters combined to propel a United Launch Alliance Delta 4 rocket off its launch pad at Cape Canaveral on March 15, successfully sending a U.S. Air Force communications satellite into orbit.