Binary Asteroids

"Binary asteroids are two asteroids that orbit each other. Their existence had long been theorized, but never confirmed, until NASA’s Galileo probe launched on a mission to Jupiter in 1989. " https://www.planetary.org/articles/what-are-binary-asteroids?utm_campaign=warming&utm_medium=email&utm_source=email21&s_src=warming&s_subsrc=email21