The search for the elusive phantom planet continues.

July 14, 2017

The planet could be about the size of Mars and much closer than Planet Nine.

June 22, 2017

After 852 days of exploration, NASA’s New Horizons is taking a break.

April 13, 2017

The truth is out there...

October 21, 2016

It's like no other space rock on Earth.

August 15, 2016

The tiny planet is the 18th largest object located in the Kuiper Belt.

July 12, 2016

The discovery could help us understand more about dwarf planets in our Solar System.

June 29, 2016

Thousands of objects exist in the Kuiper Belt, including possible planets. And we're on our way there.

April 18, 2016

The mysterious giant's gravity could be what's causing the perturbations.

April 7, 2016