Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

A 9th planet in our solar system might be found — and no, it’s not Pluto - Is there another planet out there? Researchers say ...

Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

Researchers say they found a curious dot on infrared images taken 23 years apart that seems to be moving in a manner consistent with a large, distant planet.

Discovered in 1930, Pluto was long considered our Solar System's ninth planet, but was unseated in 2006 after the discovery ...

Is it time to ghost your ChatGPT boyfriend? Or finally admit your parasocial relationship with your AI therapist is ...

The presence of another planet in the solar system could explain the odd movements of some of the bodies in the Kuiper Belt.

Once the quirky underdog of our solar system, Pluto held planetary status until 2006, when it got a cosmic demotion that still stings space fans. Discovered in 1930, Pluto was the ninth planet for ...