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

NASA’s latest hot-fire of RS-25 engine No. 20001 roared for the full 500-second launch profile, proving it can blast the ...

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

NASA and L3Harris have successfully test-fired the first RS-25 rocket engine, to help power the fifth launch of the SLS ...

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

This RS-25 engine will fly. “Every test is important, but there really is a different energy level associated with flight engines,” said Ronnie Rigney, RS-25 project manager at Stennis.

NASA followed last week's low-key engine test with the test-firing of a solid-fueled booster at Northrop Grumman's rocket ...

While NASA’s Artemis program may ultimately abandon the Space Launch System rocket, for now, Melbourne-based L3Harris is ...

HANCOCK COUNTY, Miss. (WLOX) - On Wednesday, a milestone test was conducted at Stennis Space Center for the RS-25 engines that will carry astronauts back to the moon and beyond.

The flight certification test of RS-25 engine No. 2059 marks a major milestone in NASA’s return to deep-space exploration and its journey to Mars.