Live coverage: Delta 2 launches

A Falcon 9 rocket launching an Argentine Earth-observing satellite streaked across the skies of Southern California on Sunday night, then its booster stage returned to Vandenberg Air Force Base for an on-target landing, the first by SpaceX on the West Coast.

Vandenberg Air Force Base in California played host to the United Launch Alliance Atlas 5 rocket that sent the NROL-79 payload into orbit today.

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.