NASA's Artemis II is on track to shoot for the moon in April after engineers fixed the helium issue that grounded the mission ...

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

A big restructuring of NASA's plans to land astronauts on the moon is adding missions and speeding up the timeline, but some hardware might have to be cut loose in the process.

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

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

NASA made major changes to its Artemis lunar architecture, adding a test flight of lunar landers in Earth orbit while ...

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

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 Space Launch System rocket is about to depart the launch pad in Florida where it has been vertical for more than a ...

A test of NASA's towering Space Launch System rocket uncovered another issue with the vehicle meant to launch astronauts on a mission around the moon.

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 ...

March 4 (Reuters) - NASA plans to select United Launch Alliance to supply a critical component for future missions of its moon rocket, Bloomberg News reported on Wednesday, citing people familiar with ...