Ever since the wet dress rehearsal test back in the early months of 2022, NASA has been fighting pesky hydrogen leaks in the hardware meant to fill the Space Launch System (SLS) with fuel. After it ...

Engineers are getting ready to put the pressure on hardware for the world’s most powerful rocket, NASA’s Space Launch System, as part of a rigorous test series to ensure each structure can withstand ...

Engineers repairing the area where a liquid hydrogen leak was detected during the second attempted launch of SLS on September 3. This photo was taken on September 8 at Kennedy Space Center in Florida.

After replacing faulty seals that resulted in the second scrubbed SLS launch attempt on September 3, NASA is ready to proceed with a full-scale cryogenic tanking test of its megarocket on Wednesday, ...

NASA said that even without fueling the SLS upper stage in the modified version of a countdown rehearsal, they will still gain most of the information they're seeking from other systems. Credit: ...

NASA’s first Space Launch System rocket, capped with an Orion deep-space capsule, arrived at Kennedy Space Center’s Launch Complex 39B on March 18 for a practice fueling test, known as a wet dress ...

Marcia Smith asking Jim Free's statement about having all issues dealt with. Jim Free has given the go-ahead. Also, on launch day they are going to test some things before the point where they would ...

An important fueling test of Nasa’s massive Moon rocket went perfectly on Wednesday, setting the stage for a launch attempt as early as 27 September, according to the space agency. Nasa began loading ...

NASA's Artemis Moon mission achieved another milestone today, and its successful Cryogenic Demonstration Test is a massive indicator of its next-level focus on ensuring the rocket's future performance ...