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

The new silos will include 24 new forward launch centers, three centralized wing command centers, and more than 5,000 miles ...

It looks like a March launch is no longer in the cards for Artemis II, NASA's first crewed trip to the moon's vicinity since the final Apollo mission over 50 years ago. While preparations were ...

NASA’s first crewed moon mission in decades was delayed as its engineers grapple with an all-too-familiar rocket problem: hydrogen leaks. Fixing the issue is even trickier than it may seem.

NASA engineers conduct intricate fueling rehearsals for the Artemis II mission. These simulations test the entire launch countdown process on the ground. The Space Launch System rocket is loaded with ...

Add Yahoo as a preferred source to see more of our stories on Google. The Space Launch System (SLS) rocket and the Orion spacecraft, integrated for the Artemis II mission, are seen at Launch Pad 39B ...

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

Helium flow issues in the upper stage found after last week's successful wet dress rehearsal require more scrutiny ...

NASA is considering rolling back the Artemis II rocket and Orion spacecraft to the Vehicle Assembly Building at Kennedy Space ...