Researchers have found evidence suggesting that the Earth may have once had a system of Saturn-like ... followed by a close ...

Astronomers used NASA's James Webb Space Telescope to image the warm dust around a nearby young star, Fomalhaut, in order to study the first asteroid belt ever seen outside of our solar system in ...

Fomalhaut’s Kuiper Belt and asteroid belt doppelgangers are more spread out and contain more material than those features in our solar system.

Using the James Webb Space Telescope's capabilities, scientists captured the first asteroid belt seen outside the solar system – and it's more complex than expected.

Dwarf planet hosts a ring that’s unexpectedly far from the planet At that distance, the ring should condense into a moon. Why hasn't it?

Because the Kuiper Belt had seemed small, one theory had been that the solar nebula that formed our planetary system had also been smaller than normal.

When the Chicxulub asteroid slammed into Earth, it set off a chain of planet-wide devastation. New research suggests we should blame Jupiter.

A better scenario—and the one the new paper argues for—is that that body escaped intact from the asteroid belt and wandered toward the inner solar system.

There may be a new population of Kuiper Belt objects at 70-90 au. “If this is confirmed, it would be a major discovery. The primordial solar nebula was much larger than previously thought, and this ...

Saturn’s rings are iconic, but new evidence suggests Earth might once have sported one of its own. This ring would have caused chaos on the surface.