Four Aerojet Rocketdyne RS-25 engines are fully installed in a NASA ... on Space Shuttle and their knowledge and we use a lot of model-based [analysis] to figure out the best way to get our ...

On July 25, NASA tested one of its RS-25 engines. The RS-25 engine isn't just any engine — it's a rocket engine that will launch the most powerful rocket in history — the Space Launch System ...

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The engine that will drive America's next great rocket to deep space blazed through its first successful test Jan. 9 at the agency's Stennis Space Center near Bay St. Louis, Mississippi. The RS-25, ...

NASA completed a full-duration, 500-second hot fire of an RS-25 certification engine Jan. 17, continuing a critical test series to support future SLS (Space Launch System) missions to the moon and ...

(Photo Caption: RS-25 engine 2063 on display at Stennis Space ... “We started out with the Shuttle model, and so now we’ve gone through those iterations and gotten ourselves down to a lesser ...