Live coverage: Two satellites lift off aboard Ariane 5

SpaceX’s fired the engines of its Falcon Heavy rocket at launch pad 39A at 12:30 p.m. EST (1730 GMT) on Wednesday. The crucial pre-launch engine test has been repeatedly delayed since the rocket returned to the launch pad earlier this month.

Watch a replay of the liftoff of an Ariane 5 rocket Wednesday from the Guiana Space Center, a spaceport carved from the edge of the Amazon rainforest. The launcher carried four Galileo navigation satellites into orbit.

Egypt’s first military communications satellite and a powerhouse spacecraft to beam Internet signals to airline passengers and maritime vessels across Europe and the Middle East rocketed into orbit Tuesday on the 250th flight of an Ariane launcher.