Live coverage: 400th Proton rocket takes off with Russian satellite

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.

Fifty years to the day after Neil Armstrong stepped onto the surface of the moon, a NASA astronaut, an Italian flight engineer and a Russian commander geared up for launch aboard a Soyuz spacecraft Saturday on a six-hour flight to the International Space Station.

A veteran Russian cosmonaut, a rookie French flight engineer and a record-setting NASA astronaut making her third trip to the International Space Station are gearing up for launch Thursday aboard an upgraded Soyuz ferry craft, kicking off a two-day flight to the orbital laboratory.