NASA’s Lucy spacecraft is prepared to be moved from the Work Processing Cell to the Airlock inside the Astrotech Space Operations Facility in Titusville, Florida, on Sept. 29, 2021. A United Launch Alliance V 401 rocket roared off the pad at Cape Canaveral Space Force Station’s Space Launch Complex 41 on Oct. 16, 2021, at 5:34 a.m. EDT, carrying Lucy into space. During its 12-year primary mission, Lucy will explore a record-breaking number of asteroids, flying by one asteroid in the solar system’s main belt and seven Trojan asteroids. Lucy is the first space mission to study the Trojan asteroids, which hold vital clues to the formation of our solar system.