There have been questions about a mysterious ninth planet in our solar system for nearly a decade. Pluto was unseated as ...

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

Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

Caroline Delbert is a writer, avid reader, and contributing editor at Pop Mech. She's also an enthusiast of just about ...

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

Use precise geolocation data. Actively scan device characteristics for identification. Store and/or access information on a ...

Pluto is connected to the concept of power because it rules the subconscious motives that prevent us from reaching our true ...

The solar system consists of our star, the sun, and everything bound to it by gravity: the planets Mercury, Venus, Earth, ...

Discovered in 1930, Pluto was the ninth planet for over 75 years, orbiting at the chilly fringes of our solar neighborhood. But then scientists at the International Astronomical Union decided ...