A team of astronomers believes they may have spotted a serious candidate for a ninth planet in our Solar System. This object, located far beyond Neptune, could revolutionize our understanding of our ...

It's far out, man – literally. Researchers have uncovered the most-distant celestial object in the solar system, a pink dwarf planet nicknamed "Farout," detect at a distance of more than 100 times ...

While searching for the mysterious Planet X that some astronomers believe lurks on the edge of our solar system, researchers instead found an extremely distant object they dubbed “the Goblin.” And ...

If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth. The best candidate yet for the elusive Planet Nine has been spotted in two ...

Astronomers at the California Institute of Technology announced on Wednesday they’d found evidence for a massive, faraway planet. If true, it would constitute the ninth planet in our solar system, an ...

The solar system’s retinue of known, faraway worlds has gained another member: a small, icy body that takes 40,000 years to plod once around the sun, traveling farther away from our home star than all ...

Interstellar objects like 3I/ATLAS that have been captured in planet-forming disks around young stars could become the seeds of giant planets, bypassing a hurdle that theoretical models have ...

Fast-moving objects like interstellar comet 3I/ATLAS may be planet-forming seeds, potentially helping to solve an old Solar System mystery. On July 1, 2025, astronomers spotted an object moving ...

A tiny star with a giant planet is further muddling astronomers' notion of what a planet is. The planet is one of perhaps only two or three planets around other stars to be photographed directly, but ...

WASHINGTON (Reuters) - Scientists have discovered the most distant object known in our solar system, so remote and unusual they chose the nickname "Farout" for the slow-moving, icy, pinkish dwarf ...