This Newly Discovered Mini Planet Is Orbiting So Far It Takes 25,000 Years to Circle the Sun

This Newly Discovered Mini Planet Is Orbiting So Far It Takes 25,000 Years to Circle the Sun

A 700-kilometer-wide object orbits farther than almost anything we've ever seen.

Newest Member Of The Solar System Just Announced – And It’s In An Extreme Orbit

The object is big enough to be a new dwarf planet and challenge the Planet 9 hypothesis.

Scientists Just Announced a New Solar System Member – And It’s Unlike Anything We've Seen

A distant, icy world has just been added to our solar system’s official roster, and its strange orbit might challenge one of the biggest space mysteries of our time. According to a study published on arXiv, the object—known as 2017 OF201—is not just any distant rock. It’s a trans-Neptunian object (TNO) that could potentially be classified as a dwarf planet, orbiting the Sun once every 25,000 years. The discovery, announced by the International A…