There is a reason building a rocket engine is harder than most things you want to build. If you are building, say, a car, your goal is to not have it explode. If you are building a bomb, you want ...

Rocket Lab launched its 40th Electron mission this week and achieved an important milestone in its quest to reuse orbital rockets. As part of the mission, the launch company reused a previously ...

The previously used Rutherford engine passed qualification tests and is set to make history as the first 3D-printed engine to reach space for a second time.

Rockets and their engines have long been of interest for both space exploration and military use—including for powering hypersonic weapons.

The aerospike has been considered as a replacement for the bell-shaped nozzle rocket engine for nearly 70 years. The combination of artificial intelligence and 3D printing may finally make it happen.

Blue Origin has shared footage of a test fire of its powerful BE-4 engine in ongoing tests that follow the engine's recent first flight on a ULA rocket.

On Tuesday, Stoke Space announced the firing of its first stage rocket engine for the first time earlier this month, briefly igniting it for about two seconds. The company declared the June 5 test ...

Blue Origin says it has delivered the BE-4 rocket engines for the first launch of United Launch Alliance's Vulcan Centaur rocket.

Seattle's Museum of Flight brings its collection of space artifacts up to the present day with a Blue Origin BE-3U rocket engine..