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

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

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

At 4:02 p.m. on June 20, the humid air over Bay St. Louis, Mississippi, cracked open with a sound like every freight train in ...

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

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.

While the fate of NASA’s Space Launch System (SLS) rocket hangs in the balance, the agency is pushing ahead with tests of new ...

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