NASA fired up RS-25 engine No. 20001 at the Fred Haise Test Stand at NASA’s Stennis Space Center at Bay St. Louis, ...

The Space Launch System rocket's RS-25 engine was fired up for the “final round of certification testing ahead of production ...

CAPE CANAVERAL, Fla. -- NASA said Tuesday it will now target a March launch of its new moon rocket after running into exasperating fuel leaks during a make-or-break test a day earlier. The space ...

NASA engineers manage propulsion systems and space communications to maintain Artemis II’s schedule, ensuring the Orion spacecraft and crew remain connected from launch to splashdown.

CAPE CANAVERAL, Fla. (AP) — NASA took another crack at fueling its giant moon rocket Thursday after leaks halted the initial dress rehearsal and delayed the first lunar trip by astronauts in more than ...

CAPE CANAVERAL, Fla. -- NASA ran into exasperating fuel leaks during a make-or-break test of its new moon rocket Monday, calling into question how soon astronauts could take off for a trip around the ...

NASA's Artemis return-to-the-moon program is years behind schedule and billions of dollars over budget. Could a successful ...

Aerospace company Relativity is expanding its rocket component production and rocket engine testing operations at NASA’s Stennis Space Center in Hancock County. The project is a $59-million corporate ...

For more than 60 years, nearly every large rocket used some combination of the same liquid and solid propellants. Refined ...