Teaser Planetary Science

Moons of Uranus face future collision

photo of Uranus taken by Voyager in 1986

In 1986, Voyager 2 discovered a clutch of moons orbiting Uranus. Figuring out how massive the moons are and what they’re made of gives clues to their ultimate fate.

Erich Karkoschka/Univ. of Arizona, Voyager 2, NASA

By Ashley Yeager

- More than 2 years ago

If you could put Uranus’ moon Cressida in a gigantic tub of water, it would float.

Cressida is one of at least 27 moons that circle Uranus.