For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Parade. If romance and connection are on your mind, you’ll love what the sky offers you over the next few weeks! Venus, the ...

The first observations of Pluto by NASA’s James Webb Space Telescope (JWST) reveal dramatic phenomena on its surface, like ...

Almost 20 years after Pluto was infamously downgraded from its status as a planet, scientists now believe they have discovered a new planet in our solar system.

A new dwarf planet named 2017 OF201 has been discovered far beyond Neptune. It sits in a region previously thought to be empty. Its existence raises questions about the structure of our solar system ...

But Pluto was demoted to dwarf planet status in 2006. There are now four other dwarf planets, and Cheng believes 2017 OF201 could join their ranks. When researchers modelled its orbit, they found ...

But Pluto turned out to be too tiny — it is smaller than the moon — and was demoted to dwarf planet status in 2006. There are now four other officially recognized dwarf planets, and Cheng believes ...

In 1930, astronomers were searching for planet nine when they discovered Pluto, which became the solar system’s ninth planet before it was demoted to dwarf planet status in 2006. There are four other ...

31,018 people played the daily Crossword recently. Can you solve it faster than others?31,018 people played the daily Crossword recently. Can you solve it faster than others?

But Pluto turned out to be too tiny -- it is smaller than the Moon -- and was demoted to dwarf planet status in 2006. There are now four other officially recognised dwarf planets, and Cheng believes ...