A ninth planet the size of Neptune may be hidden in the far reaches of the solar system, but the evidence has left some ...

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

Billions of years ago, in the frozen edges of the solar system, a violent impact shaped one of space’s oddest pairs. Instead ...

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.

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

When Pluto enters retrograde in 2025, it triggers a unique shift, affecting some lucky zodiac signs in profound and ...

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

There have been questions about a mysterious ninth planet in our solar system for nearly a decade. Pluto was unseated as number nine in 2006. Now, a group of international researchers say they may ...

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

What is Pluto Retrograde, and how will it impact your star sign? Here's a Free Horoscope reading for every zodiac sign this ...

A recent research paper suggests that a planet may exist far beyond Neptune — less than 20 years after the previous ninth planet, Pluto ... surrounding the solar system. Hints of this object ...