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By Science News Staff

- More than 2 years ago

Planetary identity crisis

Astronomers spotted icy rings encircling the planetoid Chariklo, a 250-kilometer-wide hunk of ice and rock that orbits the sun between Saturn and Uranus. In “Icy rings found around tiny space rock” (SN: 5/3/14, p. 10), Christopher Crockett added that Chariklo may also have unseen orbiting moons keeping the rings in place.