One of the four RS-25 engines now being bolted into the core stage of NASA’s next moon rocket is not new hardware at all.

KENNEDY SPACE CENTER — On Wednesday morning, NASA will begin its Artemis II moon rocket’s long march back to the Vehicle Assembly Building to begin repairs after a helium flow issue forced the ...

900 miles (1,448 km) after it departed the Michoud Assembly Facility in New Orleans on board a barge called Pegasus, the largest rocket section of the Space Launch System (SLS) that will power the ...

Ever wonder how the National Aeronautics and Space Administration's towering rockets get from parts to pad? It's a process. On the one hand, you've got the massive barge NASA uses to ferry core stages ...

The core stage for NASA's Artemis III moon rocket has arrived at the Kennedy Space Center in Florida. This crucial hardware is the largest part of the Space Launch System (SLS) rocket and houses its ...