AJ Nick, a robotic engineer with the Granular Mechanics and Regolith Operations Lab, monitors the Regolith Advanced Surface Systems Operations Robot (RASSOR) from a control room during testing in the regolith bin inside Swamp Works at NASA’s Kennedy Space Center in Florida on June 5, 2019. Tests use a gravity assist offload system to simulate reduced gravity conditions found on the Moon. On the surface of the Moon, mining robots like RASSOR will excavate the regolith and take the material to a processing plant where usable elements such as hydrogen, oxygen and water can be extracted for life support systems. RASSOR can scoop up icy regolith which can be used to make operations on the Moon sustainable.