Bulk Metallic Glass Gears (BMGG) Testing at Swamp Works

Drew Smith, a robotics engineer and lab manager with the Exploration Research and Technology programs at NASA's Kennedy Space Center, prepares a Bulk Metallic Glass Gear (BMGG) for ambient temperature tests in a vacuum inside a cryogenic cooler at Kennedy's Granular Mechanics and Regolith Operations lab on June 17, 2021. Made from a custom bulk metallic glass alloy, BMGGs could be used in heater-free gearboxes at extremely low temperatures in locations such as the Moon, Mars, and Europa, one of Jupiter’s moons. NASA’s Jet Propulsion Laboratory is working with commercial partners to create the gears.