Scientists have identified an object about 700km wide inhabiting the frigid outer reaches of our solar system that might ...

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

Researchers found the object named 2017 OF201 while searching for "Planet Nine" - a hypothetical planet thought to exist ...

As a result of the International Astronomical Union’s 2006 demotion of Pluto from planet to dwarf planet, our solar system ...

A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 ...

For the unversed, "Planet Nine" is a hypothetical planet which is reportedly larger than Earth that is thought to orbit ...

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

Some scientists think they discovered a new dwarf planet at the edge of the solar system, so far away that it takes around 25 ...

A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 years to complete one orbit around the sun. The object, known as 2017 ...

Pluto, the largest of those dwarf planets, has a diameter of about 1,477 ... "The presence of this single object suggests that there could be another hundred or so other objects with similar ...

Scientists have discovered a colossal object approximately 435 miles wide in the frigid outer reaches of our solar system, ...

A new dwarf planet discovery in the outer solar system is challenging the long-standing theory of a hidden giant planet ...