SpaceX is pausing Falcon 9 launches after an issue with the rocket’s upper stage encountered at the end of a launch Feb. 2.

Space Exploration Technologies (SpaceX) performed an engine test of its first Falcon 9 launch vehicle on its pad at Cape Canaveral Air Force Station, Fla., March 13, successfully igniting all nine ...

Once Elon Musk decided to build a reusable spacecraft to carry his dreams of Martian colonization, the engineers at SpaceX knew they would need a special engine for the world’s most powerful rocket.

The Earth is much larger than most people realize. You need to use engines if you want to efficiently navigate large sections of the planet. Everything from cars to planes relies on engines, but they ...