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

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 revealed. Measuring between 370 and 930 miles wide the mysterious space ...

Astronomers have found a possible new dwarf planet beyond Pluto. And the remarkable thing is that they’d been photographing it for a decade without even knowing it was there. The icy world, named 2026 ...

Archived observations appear to show a moving object in the far-distant outer solar system, but its reality is unclear ...

ED138, a newly discovered dwarf planet candidate, could join a group of only five other recognized objects that includes our solar system’s former ninth planet.

Scientists with the U.S. National Science Foundation have identified a large object in the outer reaches of the solar system ...

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 ...

Astronomers analyzing data from the Vera C. Rubin Observatory in Chile have identified a massive candidate world orbiting ...

Add Yahoo as a preferred source to see more of our stories on Google. Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky ...