A team of researchers say they have found the "strongest statistical evidence yet that Planet 9 is really out there", after studying a population of distant, unstable objects that cross Neptune's ...

For years, scientists have been scanning the icy outskirts of our Solar System for an unknown massive planet. The ...

Dwarf Planets Scientists found a possible new dwarf planet — it could spell bad news for Planet 9 fans. Comets New interstellar object 3I/ATLAS: Everything we know about the rare cosmic visitor.

The Earth and the Moon found out that there is a Ninth planet, and they decided to find it... Welcome to the SpaceBalls channel!

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

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.

Vera C. Rubin observatory to film 10-year-long night sky 'movie' : Short Wave Some scientists are convinced that beyond Neptune, there's a planet they've yet to see. This so-called "Planet 9" is ...

Over the past decade or so, astronomers have speculated about the characteristics of rogue planets in the Milky Way galaxy. These "free-floating" worlds don't orbit stars, but instead roam the ...