What if there’s a planet hiding in our solar system, 10 times larger than Earth? While this theory has yet to be confirmed, ...

For many of us, the idea of a solar system with just eight planets is a fundamental concept in science. However, since Pluto was reclassified as a dwarf planet in 2006, Neptune has stood as the last ...

It’s the end of the world as we know it. Doomsayers have prophesized for decades about a giant, rogue planet in our solar system — dubbed Planet X or Nibiru — that has the capabil… ...

Unsuccessful at finding planet X? Substitute with undetectable black hole.

In the far reaches of the solar system, a hidden planet larger than Earth may be lurking ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

The so-called theoretical world - dubbed Planet X - has still not actually been seen by anyone, and for the meantime remains just that, a theory. But are scientists any closer to solving the mystery?

If the JWST can see galaxies billions of light-years away, why can’t it find the proposed Planet X in our solar system?

The cold and mysterious Oort cloud at the edge of our solar system may be hiding a rogue exoplanet, new research suggests.

News Weird News Conspiracy theories Inside wild Planet X conspiracy theory about the 'Hidden Earth' in our solar system Many people across the world are convinced that 'Hidden Earth' - which is ...