Live coverage: Ariane 5 blasts off with two Intelsat satellites

SpaceX’s Falcon 9 rocket is set for liftoff from Cape Canaveral on Sunday, heading due south over the Atlantic Ocean on a trajectory hugging the east coast of Florida to deliver 143 small satellites into polar orbit.

Loaded with three commercial satellites, a European Ariane 5 rocket returned to its launch pad in French Guiana Thursday after a two-week launch delay to resolve a technical issue that forced an abort to a countdown July 31. Arianespace says the mission has been rescheduled for launch Saturday due to unfavorable upper level winds in the forecast for Friday.

Ground crews at the Guiana Space Center in South America have spent the last few months preparing the BepiColombo spacecraft, a tandem mission with European and Japanese science orbiters bound for Mercury, for launch aboard an Ariane 5 rocket.