Live coverage: Space station crew safely returns to Earth

SpaceX ran a Falcon 9 rocket through a customary preflight checkout Tuesday, filling it with super-cold propellants and firing its nine Merlin first stage engines in preparation for liftoff Friday on a resupply run to the International Space Station.

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.

SpaceX test-fired a previously-flown Falcon 9 rocket Monday evening on pad 39A at NASA’s Kennedy Space Center in Florida, setting the stage for a launch later this week carrying the Japanese-built, Qatari-owned Es’hail 2 communications satellite to orbit.