Astronomers Discover Second Ring Around Quaoar.

Astronomers have discovered a second "impossible" ring around Quaoar, a tiny world beyond Neptune in the Kuiper Belt. The new ring, about six miles wide, encircles Quaoar at a distance of about 1,500 miles. The discovery implies that Quaoar is a more complex system than initially thought. The ring was found indirectly when distant stars passed behind Quaoar, blocking the starlight. Another occultation will occur on May 13, visible to telescopes in the United States and Canada. The presence of a moon, Weywot, may explain the distant rings.