When NASA’s Lucy spacecraft flew past its first official target Dinkinesh in November 2023, researchers discovered that the asteroid—known as “Dinky”—was not alone in space. A satellite asteroid, which the team named “Selam,” was orbiting Dinky. As Lucy sent more data back to Earth, the researchers discovered something surprising: Selam was not just one moon, it was a contact binary—or two moons melded together. When NASA’s Lucy spacecraft flew past its first official target Dinkinesh in November 2023, researchers discovered that the asteroid—known as “Dinky”—was not alone in space. A satellite asteroid, which the team named “Selam,” was orbiting Dinky. As Lucy sent more data back to Earth, the researchers discovered something surprising: Selam was not just one moon, it was a contact binary—or two moons melded together. Planetary Sciences Phys.org – latest science and technology news stories