Live coverage: Ariane 5 blasts off with two Intelsat satellites

The countdown for a planned launch of a SpaceX Falcon 9 rocket from NASA’s Kennedy Space Center in Florida automatically aborted in the last second before liftoff Sunday after an on-board computer detected unexpected data during an engine power check.

A Proton rocket lifted off from Kazakhstan on Thursday with a large European-built telecommunications satellite to broadcast television, radio and other services across Russia and sub-Saharan Africa.

Watch a replay of the launch of a SpaceX Falcon 9 rocket from Cape Canaveral shortly after midnight Monday with the SES 12 communications satellite.