#ARRM The #Asteroid ☄️ Redirect Mission was intended to develop a #robotic #spacecraft to visit a large #NEA and collect a multi-ton boulder ⛰️ from its surface. It would then redirect the boulder into orbit around the #moon 🌙, where #astronauts 👨‍🚀 would have explored it and returned to #Earth with samples. White House Space Policy Directive 1, issued 📆 Dec. 11, 2017, ended the mission. but many of the central #technologies in development for that mission, such as #SolarElectric ☀️⚡ #propulsion, will continue https://www.jpl.nasa.gov/missions/asteroid-redirect-robotic-mission-arrm