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, ...

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

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 ...

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

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

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

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

Find out which zodiac signs will be affected in profound and unique ways when Pluto enters retrograde in 2025, triggering a ...

Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?

Macduff met the Herald this week at the Jupiter basalt marker along the Columbia Park Trail, just east of the blue bridge. It ...