Lying beyond Pluto, 2026 ED138 could be as large as 1,500 kilometers in diameter. Astronomers are still working to confirm ...

A MASSIVE new potential dwarf planet has been discovered for the first time – as the surprising reason for the find is ...

A large object in the Kuiper Belt — a distant region of icy and rocky bodies past Neptune — appears to be a new candidate ...

Scientists may add a new dwarf planet to the official roster of our solar system. The distant, icy body, provisionally dubbed ...

Learn about 2026 ED138, a new dwarf planet candidate that may be one of the largest and brightest objects discovered beyond ...

Astronomers have identified a distant object beyond Neptune, and it could classify as a dwarf planet, like Pluto.

Astronomers have identified a distant object beyond Neptune, and it could classify as a dwarf planet, like Pluto.

Add Yahoo as a preferred source to see more of our stories on Google. (Ianm35/iStock/Getty Images Plus) The Solar System is one of the comforting constants of human existence. No matter what else we ...

Astronomers have uncovered evidence of a bizarre, potentially historic discovery: the first moon ever detected beyond our ...

Astronomers using the European Southern Observatory's Very Large Telescope (ESO's VLT) have found a rare disk of debris ...

As far-fetched as it may seem, quirks of orbital mechanics could allow hundreds of planets to be packed around a star ...

Some exoplanets absorb almost every ray of visible light that reaches them. Their darkness is revealing unexpected clues about the strange atmospheres surrounding distant worlds.