Photos: Atlas 5 rolls out for launch

A SpaceX Falcon 9 rocket, powered by a previously-flown booster, lifts off from launch pad 39A at NASA’s Kennedy Space Center in Florida at 6:27 p.m. EDT (2227 GMT) on March 30, 2017, carrying the SES 10 communications satellite. The launch marked the first time SpaceX has reused the first stage of one of its Falcon 9 rockets.

A massive U.S. Navy satellite to launch from Cape Canaveral in January has arrived in Florida, kicking off a campaign to ready the mobile communications craft for flight.

A United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral at 1:21 p.m. EDT (1721 GMT) with a satellite to replenish the U.S. Air Force’s Global Positioning System navigation network.