SwRI-led Lucy observes first-ever contact binary orbiting an asteroid
After the Southwest Research Institute-led Lucy mission flew past the asteroid Dinkinesh, the team discovered that it is even more “marvelous” as its newly discovered satellite is now shown to be a double-lobed moonlet. As NASA’s Lucy spacecraft continued to return data acquired during its first asteroid encounter on Nov. 1, 2023, the team discovered that Dinkinesh’s surprise satellite is itself a contact binary, made of two smaller objects touching each other.
In the first image of Dinkinesh and its satellite taken at closest approach, the two lobes of the contact binary lined up, one behind the other, ...










