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

Pluto certainly wins the award for most releases this month, with a frankly absurd number of new movies hitting the service.

What is Pluto Retrograde, and how will it impact your star sign? Here's a Free Horoscope reading for every zodiac sign this ...

Once the quirky underdog of our solar system, Pluto held planetary status until 2006, when it got a cosmic demotion that still stings space fans. Discovered in 1930, Pluto was the ninth planet for ...

Once the quirky underdog of our solar system, Pluto held planetary status until 2006, when it got a cosmic demotion that still stings space fans. Discovered in 1930, Pluto was the ninth planet for ...