Live coverage: Stormy weather scrubs Falcon Heavy launch

A communications payload owned by the Luxembourg-based satellite operator SES will ride the first launch of an upgraded Falcon 9 rocket in mid-2015, SES officials said Friday.

A nearly 180-foot-tall (54.8-meter) Ariane 5 rocket rolled out of its integration hangar to the ELA-3 launch zone Wednesday at the Guiana Space Center in South America, moving into position for liftoff Thursday with two geostationary communications satellites.

SpaceX’s Falcon 9 booster is set for liftoff from Cape Canaveral on Sunday morning, but most of the launcher’s ascent into orbit will be under a news blackout at the request of the National Reconnaissance Office, the secretive U.S. government intelligence agency whose mission is riding on the rocket.