Lunar Gateway's Solar Electric Propulsion Engine Aces Qualification Tests

NASA's Advanced Electric Propulsion System (AEPS), a solar electric propulsion system that uses xenon as propellant, has passed qualification tests and will be integrated into the Lunar Gateway. Originally designed for the now-cancelled AARM mission, AEPS will serve as the primary propulsion method for deep space and cargo missions, supporting the Artemis program's goal of landing astronauts on the Moon. The AEPS thrusters will be mounted on the Power and Propulsion Element (PPE) of the Lunar Gateway, set to launch in November 2025.