CAPE CANAVERAL, Fla. — The little asteroid visited by NASA’s Lucy spacecraft this week had a big surprise for scientists.
It turns out that the asteroid Dinkinesh has a dinky sidekick — a mini moon.
The discovery was made during Wednesday’s flyby of Dinkinesh, 300 million miles away in the main asteroid belt beyond Mars. The spacecraft snapped a picture of the pair when it was about 270 miles out.
In data and images beamed back to Earth, the spacecraft confirmed that Dinkinesh is barely a half-mile across. Its closely circling moon is a mere one-tenth-of-a-mile in size.
NASA sent Lucy past Dinkinesh as a rehearsal for the bigger, more mysterious asteroids out near Jupiter.