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 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 ...

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 ...

NASA has canceled EUS and Block 1B/2 upgrades entirely, opting for a standardized upper stage to support ~10-month intervals ...

NASA took another crack at fueling its giant moon rocket Thursday after leaks halted the initial dress rehearsal and delayed ...

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

SpaceX and Blue Origin hold Human Lander System (HLS) flight service contracts with NASA to ferry astronauts to and from ...

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 ...

NASA continues testing for the Artemis 2 launch after hydrogen leaks occurred during a Feb. 2 wet dress rehearsal. Credit: NASA/Aubrey Gemignani WASHINGTON — A NASA test to confirm repairs to seals in ...

The Artemis 2 mission, which will send 4 astronauts around the moon, has been delayed until at least March 2026. A previous delay was caused by a hydrogen leak discovered during a prelaunch fueling ...

A pending contractor switchup marks another blow to Boeing, which is struggling to prove itself as a reliable strategic ...