Rings are more than pretty things. They show love. They show a promise. Many people now want rings that are kind to the Earth ...

Even dwarf planets like Chariklo and Haumea have rings. "What makes Quaoar’s ring unique, however, is where it is found relative to Quaoar itself," the agency said.

A planet’s moons can also influence its ring system. For example, Jupiter has rings just like the other gas giants, but its rings are smaller and fainter than Saturn's.

Uranus’ dim inner and outer rings are also visible in this image, including the elusive Zeta ring—the extremely faint and diffuse ring closest to the planet. NASA, ESA, CSA, STScI ...

Astronomers had long assumed that Saturn's distinctive rings formed around the same time as the planet some 4.5 billion years ago in the earliest days of our Solar System. That assumption received ...