NASA's new RS-25 engine No. 20001 underwent a full-duration "hot-fire" test, replicating actual launch time and power levels.

New Frontier Aerospace said the rocket engine, called Mjölnir, performs at the high end of liquid-fueled rocket efficiency.

American space agency NASA conducted the first full duration hot fire of a brand-new RS-25 rocket engine since the hardware ...

New Frontier Aerospace says it has put its 3D-printed Mjölnir rocket engine through a series of successful hot-fire tests.

NASA fired up a full-duration test of its new RS-25 engine that will power the Space Launch System rocket on Artemis missions ...

New Frontier Aerospace (NFA) on Monday said it has completed a series of successful hot fire tests of its additively ...

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Engineers discovered the leak during a routine seven-second “hot fire” test of the Falcon 9 rocket’s booster stage, about 12 ...

The untested Soviet N1 rocket had the most powerful first stage ever built. Serious faults with its thirty engines would result in the largest man-made non-nuclear explosion ever.

If AI-printed rocket engines live up to their promise, we could see an explosion of innovation. One that challenges even SpaceX’s head start. Don’t Miss : A roaming black hole just demolished ...

The 10-foot-high Raptor—which powers the Starship—is arguably the most advanced Western rocket engine in production. Its latest iteration produces 280 tonnes of thrust at sea level, surpassing ...