Live coverage: Delta 2 launches

The most powerful version of United Launch Alliance’s Atlas 5 rocket lifted off from Cape Canaveral at 10:30 a.m. EDT (1430 GMT) today on a three-hour flight to deploy a U.S. Navy mobile communications satellite into orbit. Follow the mission in our live journal.

Flying with an exceptionally lightweight payload, a Falcon 9 rocket delivered a multipurpose research satellite into a nearly 450-mile-high orbit Thursday for Taiwan following a smooth countdown and liftoff from California’s Central Coast.

More than three weeks after a faulty electrical component halted a countdown moments before liftoff, an Ariane 5 rocket lifted off from French Guiana on Friday with two commercial communications satellites. Launch occurred at 2156 GMT (5:56 p.m. EDT).