Flames stream from New Frontier Aerospace’s Mjölnir rocket engine during a hot-fire test. (NFA Photo) Kent, Wash.-based New Frontier Aerospace says it has put its 3D-printed Mjölnir rocket engine ...

The Air Force Research Laboratory (AFRL) and Ursa Major have successfully completed the first ...

Ursa Major Technologies has completed the first hot-fire tests of its Hadley H13 liquid rocket engine, a milestone the company says could support reusable hypersonic test vehicles and smaller launch ...

HELSINKI — Chinese launch startup Landspace carried out a breakthrough static fire test Friday as it builds towards an orbital launch attempt with its Zhuque-3 rocket. The nine engines of the Zhuque-3 ...

Astra today announced it has shipped 110 satellite engine systems since January 1, 2025, surpassing a key operating milestone set when the company went private in 2024. The achievement reflects a step ...

The newly tested engines could power a variety of space projects. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the latest ...

"MachLab is ready to play a key role in the U.K.'s strategy to return to vertical launch, ensuring that students and researchers can access hotfire facilities in a safe and controlled environment." ...

HELSINKI — China conducted a rocket stage hot fire test Friday in the latest step in the country’s plans to land astronauts on the moon. A shortened Long March 10 rocket first stage test article fixed ...

Essentially, a nuclear rocket engine is a reactor that has hydrogen running through it as a propellant, which is heated to an astonishing 3,000 K (2,727 °C, 4,940 °F), giving it almost twice the ...