NASA’s Lucy spacecraft has beamed back pictures from its latest asteroid flyby, revealing a long, lumpy, odd-shaped space rock.The space agency released the images Monday, a day after the close approach.

On April 20, the over 50-foot-wide Lucy spacecraft approached as close as some 600 miles from Donaldjohanson, which is aptly named for the discoverer of the famed Lucy hominid fossil, paleoanthropologist Donald Johanson. The craft sped by at 30,000 mph, and used a specialized camera to capture a detailed view of the five-mile-wide asteroid.