Aerojet Rocketdyne Completes Updated RS-25 Engines For Artemis IV

Photo: NASA
Aerojet Rocketdyne, an L3Harris Technologies company, announced last week that it has completed modernizing the four flight-proven RS-25 engines that will help power NASA’s Space Launch System (SLS) rocket on the Artemis IV mission. Artemis IV will be the first flight of the enhanced Block 1B configuration of the super-heavy-lift rocket and the last to use engines remaining in inventory from the space shuttle program.