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

In a review of 38 current NASA projects that cost $250 million or more, the Government Accountability Office found ...

Watch how the Space Launch System rocket RS-25 undergoes a core stage engine test-fire. Credit: NASA's Stennis Space Center ...

Engineers didn't immediately acknowledge the issue during that broadcast, apart from one controller uttering "Whoa," followed ...

The Space Launch System rocket's RS-25 engine was fired up for the “final round of certification testing ahead of production ...

Utah has a significant role, being the "factory" for the propulsion systems used by the SLS rocket. The new booster rocket ...

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 ...

PROMONTORY, Utah — NASA will conduct the first full-scale test of its most powerful solid rocket booster motor Thursday, ...

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

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

The Artemis II rocket’s core stage that will help carry four astronauts to orbit the moon — the first time in more than 50 years humans visited Earth’s lunar sister — arrived at NASA’s ...