NASA’s Space Launch System (SLS) is ready to fly with its four shuttle-era engines. The rocket, outfitted with the RS-25 ...

More than $10 billion in funds are included in Trump’s tax and spending bill for NASA programs previously targeted by the ...

Despite the White House's desire to cancel the Space Launch System, the Artemis program's primary launch vehicle, NASA ...

The $10 billion addition to the Artemis architecture, which includes funding for additional Space Launch System rockets and ...

The U.S. Senate has passed Trump’s budget bill adding $10 billion for NASA’s Artemis program, funding more SLS rockets, ...

NASA recently tested the largest rocket motor ever built in Box Elder County last week. But during the harsh, two-minute-long ...

NASA plans to launch its live-streamed programming on Netflix -- featuring rocket liftoffs, astronaut spacewalks and live ...

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 ...

President Donald Trump wants to phase out NASA's Space Launch System — but the agency seems to have other plans. As Ars ...

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

Musk has been critical of the SLS rocket, calling it fully expendable. He argued that each launch costs around $1 billion, ...