**Astronomers have found a ring system around the dwarf planet Kuiper Belt's dwarf planet Quaoar. This discovery is unexpected according to current theories.** [A dense ring of the trans-Neptunian object Quaoar outside its Roche limit](https://www.nature.com/articles/s41586-022-05629-6) Usually, rings are found around giant planets, but this is a surprising discovery because it's far away from the central body, outside of its Roche limit, where it was believed that material was too dense to form into a ring. The ring is located at 7.4 times the radius of Quaoar, which is well beyond the Roche limit. Scientists have done simulations and found that elastic collisions between particles can keep the ring in place. They also found that the ring is close to the 1/3 spin-orbit resonance with Quaoar, which is similar to other dwarf planets like Chariklo and Haumea. This suggests that this resonance plays an important role in keeping the rings in place around small bodies.