NASA will replace on the pad a seal for a quick disconnect fitting between a liquid hydrogen fuel line and the core stage of the SLS, keeping open the option for a launch attempt later this month.

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, ...

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 ...

It’s been a long road getting here, but the American space agency is finally capable to say it overcame a major hurdle on its race to the Moon. The second wet dress rehearsal test was conducted on ...

NASA was scheduled to conduct a key test of its Space Launch System rocket and spacecraft today but had to scrub the event part way through due to an issue with its mobile launcher platform. The ...

The new-and-improved RS-25 engine blasted its way through the hot-fire test, which ended sooner than expected. reading time 2 minutes The crewed Artemis 5 mission to the Moon won’t happen until 2028 ...

PARIS—NASA is not expected to learn if the U.S. Space Force will agree to another waiver for the Space Launch System’s (SLS) flight termination system (FTS) until after a tanking test demonstrates ...

After two false starts, NASA is hoping that the third time will be the charm for the wet dress rehearsal of its Space Launch System (SLS) rocket. The enormous rocket which is intended to carry humans ...

NASA has completed the first full-scale static test fire of the Booster Obsolescence and Life Extension (BOLE) solid rocket motor, the next-generation solid rocket booster for the space agency’s SLS ...

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 ...