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 of fiber connections to wire it all together, military and industry ...

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 ...

After fixing a helium flow issue, the space agency is preparing to return its Space Launch System (SLS) rocket to the launch pad later this month.

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

NASA increases Artemis mission cadence, adds a 2027 test flight, and standardizes SLS configuration to support a 2028 Moon landing and annual missions thereafter.

In shaking up its Artemis lunar program, NASA's new moon plan looks more like the Apollo missions of the 1960s. Instead of ...

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

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 ...