NASA has completed a 535-second test of its Space Launch System (SLS) RS-25 rocket engine to collect engine performance data. The test was conducted at NASA’s Stennis Space Center near Bay St. Louis, ...

RS-25 prime contractor L3Harris continues to ramp up production of new flight engine hardware at their Los Angeles area facility and final assembly at the Stennis Space Center. NASA certified ...

BAY ST. LOUIS, Miss — NASA's final test of its Space Launch System (SLS) rocket to make sure it was ready to launch future Artemis Moon missions experienced early engine shutdown. The core stage ...

Teams at NASA’s Stennis Space Center deliver, lift, and install the first new production RS-25 engine on the Fred Haise Test Stand on Feb. 18. Credit: NASA/Danny Nowlin NASA’s Stennis Space Center ...

The Saturn V was meant for deep space missions like the SLS and Starship but was very different from the modern rockets.

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Add Yahoo as a preferred source to see more of our stories on Google. NASA fired up RS-25 engine No. 20001 at the Fred Haise Test Stand at NASA’s Stennis Space Center at Bay St. Louis, Mississippi.

WASHINGTON • Nasa conducted a test-firing of the engines for its giant Space Launch System (SLS) lunar rocket, but they shut down earlier than planned, the space agency has said. The "hot-fire" test ...