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

Researchers have found a candidate for the hypothetical Planet Nine, which could be an undiscovered giant planet way out in our solar system. However, as with all ninth planet research, the new ...

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

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

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is ...

As of May 1st, all nine Planet of the Apes movies are now streaming on Hulu, from the 1968 classic to the ill-fated Tim Burton remake to the ongoing reboot series. The decades-old film franchise ...

Neptune and then the possible Planet Nine. It's a dynamic system shaped by gravity and time, and while we've learned a lot, it still holds plenty of mysteries. In this guide, we'll explore how the ...