Not only does the new hypothesis shed light on the origins of ... ancient Mars might have also sported a ring, or rings, and scientists predict that planet may one day have more in the future.

Scientists can infer much about a planet's density and size by how much light it blocks out as it moves in front of a star. In Haumea's case, they found it sported a dense, Saturn-like ring some ...

One of the most photographed objects in the night sky is the Ring Nebula, wreckage of a bygone sun-like star about 2,000 ...

A large international team of astronomers has discovered that the dwarf planet Quaoar is circled by a second ring. In their study ... happened to pass over light from distant stars behind it.

This phenomenon, caused by a nearby elliptical galaxy, warps the light from the quasar, creating an effect that resembles a jeweled ring. The elliptical galaxy creating the gravitational lens ...

so stars and planets like Mars can be easier to spot–as long as there isn’t a ton of cloud cover. Here are some cosmic events to look for as we ring in 2025. Breakthroughs, discoveries ...