Live coverage: Proton soars into space with Inmarsat satellite

A United Launch Alliance Atlas 5 rocket blasted off from Vandenberg Air Force Base in California at 5:49 a.m. local time (8:49 a.m. EDT; 1249 GMT) Thursday on the classified National Reconnaissance Office NROL-55 mission.

A Japanese-owned communications satellite built in Colorado and a South Korean environmental monitoring observatory shared an Ariane 5 rocket ride into orbit Tuesday from the South American jungle.

The privately-funded, Israeli-built Beresheet spacecraft failed Thursday during its historic attempt to land on the moon, seeking to become the first mission to reach the lunar surface without significant government backing. The landing was expected to occur at 1925 GMT (3:25 p.m. EDT).