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’s Artemis II mission encountered another hydrogen-related setback during a “confidence test” on Feb. 12, 2026, when a ground support equipment issue restricted the flow of liquid hydrogen into ...

Add Yahoo as a preferred source to see more of our stories on Google. While NASA’s Artemis program may ultimately abandon the Space Launch System rocket, for now, Melbourne-based L3Harris is pushing ...

BAY ST. LOUIS, Miss — NASA's final test of its Space Launch System (SLS) rocket to make sure it was ready to launch future Artemis Moon missions experienced early engine shutdown. The core stage ...

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's doing everything in its power to ensure the SLS doesn't fall even further behind schedule. Hot fire tests like this involve attaching the rocket to a test stand and running the engines to ...

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

NASA's 2nd wet dress rehearsal is underway in Florida as the agency prepares to test-fuel the towering Space Launch System rocket for Artemis 2.