Four decades years after their discovery, the 13 mysterious rings around Uranus surprised astronomers again this summer. In June, new images captured their warm glow for the first time.

On March 10, 1977, astronomers discovered rings around Uranus! Astronomers had long suspected that Uranus has rings, but the actual discovery happened by accident. A team of three astronomers was ...

Discovered in 1977, the rings were only the second such system to be found after Saturn's. However, unlike Saturn, Uranus and its rings are 'tilted' almost completely sideways, like a spinning top ...