NASA has moved to replace the long-planned Exploration Upper Stage for its Space Launch System rocket with United Launch Alliance’s Vulcan Centaur 5 upper stage, a shift that could reshape the Artemis ...

NASA has wasted no time in selecting the vehicle that will replace the upper stage on its new plans for a standardized Space Launch System rocket.

NASA has selected the Centaur upper stage currently used on United Launch Alliance’s Vulcan rocket for future flights of the ...

NASA's Artemis 2 moon mission is in trouble again after teams discovered a helium issue within the SLS rocket following successful wet dress rehearsal ...

In his 1961 novel The Winter of Our Discontent, John Steinbeck wrote of loss, “It’s so much darker when a light goes out than ...

From Artemis IV onward, the new upper stage will be used instead of the existing interim cryogenic propulsion stage.

NASA: vehicle could roll out to the launch pad for a second time later this month as agency prepares for potential April launch window NASA’s crawler-transporter 2, carrying the agency’s Artemis II ...

NASA has about three weeks to complete repairs to the Space Launch System’s upper stage to make the next launch window for the Artemis 2 mission.

American space agency NASA said the helium problem in the SLS has been fixed, further tweaks underway before the rocket's rollout.

When NASA Administrator Jared Isaacman announced the revamped approach to the Artemis moon program, it was unclear whether ...

SLS still has helium leaks. Helium leaks have been a problem since the Space Shuttle days. It is so cold that it is hard to work with. The picture is of the ...

CAPE CANAVERAL—NASA is revising its Artemis lunar exploration initiative with a new mission to dock one or both human lunar ...