Rocket Upper Stage Integrated as Preparations for Artemis II Continue
Teams with NASA’s Exploration Ground Systems Program begin integrating the interim cryogenic propulsion stage to the SLS (Space Launch System) launch vehicle stage adapter on Wednesday, April 30, 2025. The four-story propulsion system, built by Boeing and ULA (United Launch Alliance), is powered by an RL10 engine that will enable the Orion spacecraft to build up enough [...]









