NASA fires RS-25 engine in a 500-second test- the same duration as an SLS launch

NASA fired RS-25 engine No. 20001 for 500 seconds at Stennis Space Center, matching the approximate burn duration of RS-25 engines during an SLS launch. The engine also reached 111% power during the test as NASA evaluates hardware for future Artemis missions. Video Credit: NASA / NASA Stennis Space Center