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

Watch how the Space Launch System rocket RS-25 undergoes a core stage engine test-fire. Credit: NASA's Stennis Space Center ...

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 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 prepares Artemis II, the first crewed flight of SLS, to orbit the Moon and test Orion spacecraft systems.