American space agency NASA said it fixed one of the RS-25 engines that was supposed to be part of the Artemis II mission, ...

NASA is getting ready to launch its massive, fully expendable rocket for the first crewed flight to the Moon since Apollo.

At Stennis Space Center, NASA conducted another successful hot fire test of an RS-25 engine at the Fred Haise Test Stand.

NASA conducted a test of its newly redesigned RS-25 engine for future flights of the Space Launch System (SLS) rocket.

It is business as usual as NASA engineers prepare for an upcoming RS-25 rocket engine test at Stennis Space Center. They are well-versed on all of the pre-test work to be done, having conducted a very ...

HANCOCK COUNTY, Miss. (WLOX) - On Saturday, NASA completed the sixth RS-25 engine certification test at Stennis Space Center. The successful test marks a halfway point in testing the new engines built ...

The sky rumbled and the ground shook as the three most powerful hydrogen-fueled liquid rocket engines ever built successfully boosted a U.S. government satellite into orbit. Developed by Pratt & ...