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

Astronomers using the Vera C. Rubin Telescope discovered a possible new dwarf planet that, if confirmed, could join 5 others ...

Astronomers have discovered icy rocks in the outer solar system that appear to defy the laws of physics, sparking speculation ...

'We haven't stopped exploring.' ...

Rubin Observatory has spotted a distant world beyond Pluto as its decade-long survey begins revealing the hidden solar system ...

ED138, a newly discovered dwarf planet candidate, could join a group of only five other recognized objects that includes our ...

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

The Vera C. Rubin Observatory has found what might be a new dwarf planet in our solar system, orbiting the sun on an inclined ...

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

NSF–DOE Vera C. Rubin Observatory has found a large object that scientists have identified as a possible dwarf planet. A ...

Add Yahoo as a preferred source to see more of our stories on Google. Dottedhippo/Getty Images On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by ...

Planet 9 would fall somewhere in between these categories. It could be what is known as a Super-Earth, a rocky planet larger than our own, or a sub-Neptune, a gaseous world less massive and slightly ...