Live coverage: Ariane 5 blasts off on commercial flight

The 13th and 14th operational members of Europe’s Galileo navigation satellite network are set for liftoff Tuesday aboard a Soyuz rocket from French Guiana. Track the progress of the flight with this timeline of key events.

SpaceX’s first Falcon Heavy launch for the U.S. Air Force took a major step closer to liftoff with a hold-down engine firing Wednesday night at launch pad 39A at NASA’s Kennedy Space Center in Florida. Liftoff with a cluster of experimental satellites and weather monitoring craft is set for June 24.

The 81st flight of Europe’s Ariane 5 rocket delivered two satellites to geostationary orbit Thursday for Eutelsat and Intelsat, and these photos show the launcher taking off with nearly 3 million pounds of thrust.