After NASA announced a helium flow issue in the rocket, SLS has returned to the VAB. This further delayed the launch of ...

NASA is reportedly considering replacing the planned upper stage of its Space Launch System with hardware derived from United Launch Alliance’s Vulcan Centaur rocket, a change that could alter the ...

After a four-mile crawl from NASA's Vehicle Assembly Building, the Space Launch System stands ready on its launchpad in Cape Canaveral, Florida, on Aug. 17, 2022. - NASA / Joel Kowsky The journey ...

NASA has announced a Wednesday rollback for its SLS rocket and Orion spacecraft. Their return to the Vehicle Assembly ...

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 had just announced a flawless wet dress rehearsal and possible early March liftoff of its long-awaited Artemis II mission, but all that changed in less than 24 hours. A closer look at the giant ...

NASA’s giant SLS (Space Launch System) rocket is set to roll to the launch pad Saturday as it prepares to return humans to the vicinity of the moon for the first time in more than 50 years as part of ...

NASA has discovered a helium leak in the SLS rocket's cryogenic propulsion stage. The issue was found after a previously successful wet dress rehearsal. Engineers are rolling the rocket back to the ...