CAPSTONE (Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment) is a lunar orbiter that will test and verify the calculated orbital stability planned for the Lunar Gateway space station. The spacecraft is a 12-unit CubeSat that will also test a navigation system that will measure its position relative to NASA's Lunar Reconnaissance Orbiter without relying on ground stations. It was launched on 28 June 2022 and will spend over six months flying around the Moon. This mission is flying in preparation for the Artemis Program.
