The Nu ring seems to be fed by unknown rocky bodies, whereas the Mu ring appears rich in water ice and linked to the moon Mab ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Left to right: Saturn, ...

How far it is from the sun: 886 million miles (1.4 billion kilometers), on average How big it is: 72,400 miles (116,500 km) across, or almost 10 times the size of Earth. How many moons it has: At ...

Two faint rings circling Uranus look almost identical in photographs, but when astronomers finally split their light into a full color spectrum, the rings turned out to be made of strikingly different ...

The two faintest outer rings of Uranus look nothing alike, and that mismatch is pushing planetary scientists toward a ...