NASA's John C. Stennis Space Center has performed the second test in the latest campaign of certification testing on the Aerojet Rocketdyne RS-25E engine 0525 on the Fred Haise Test Stand, This will be the final round of testing ahead of certification on use of future NASA's Space Launch System launches as part of the NASA Artemis program. This first hot fire test lasted 550 seconds with a maximum 113% power level (past the expected normal operating thrust). video credit: NASA's John C. Stennis

Aerojet Rocketdyne performed another full duration 500 second hot fire test of a new RS-25 Engine at the NASA's John C. Stennis Space Center , the ninth in a series of twelve tests to certify the engine serial number 10001 for future NASA Artemis missions, from Artemis V. | NASASpaceflight.com