For years, astronomers have searched for evidence of a hidden giant planet at the edge of our solar system. New data suggests ...

Recent research suggests a warp in the orbital plane of Trans-Neptunian Objects (TNOs) between 80 and 400 AU, hinting at the ...

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

Planet Nine was previously suggested as a possible explanation for distant orbital clustering. It was thought to be ten times Earth’s mass, orbiting far beyond Neptune.

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

For years, astronomers have searched the outer reaches of our solar system for Planet 9, a theoretical planet that could ...

A study suggests an Earth-sized planet, dubbed Planet Y, may exist beyond Neptune, affecting the orbits of icy objects in the ...

Criminal charges are filed against a 58-year-old West Bloomfield man for allegedly attacking staff at a Planet Fitness ...

Wesley Joh charged staff at the Planet Fitness gym with a metal object before fleeing the gym, nearly running over responding ...

New discoveries of objects in the Kuiper Belt have also presented challenges for the Planet Nine theory. The latest is known ...

The debate about an undiscovered planet X or planet 9 has been going on for more than 100 years.

Space The Hunt for ‘Planet Nine’: Why There Could Still Be Something Massive at the Edge of the Solar System The mystery of Planet Nine is far from solved. Here's what we know.