The solar system doesn't end with the Kuiper Belt. In 2004, astronomers announced the discovery of a reddish, planet-like object that never gets closer to the sun than three billion kilometres ...

A potential dwarf planet has been discovered in the outer reaches of our solar system, orbiting beyond Neptune. Its presence there challenges the existence of a hypothetical body known as Planet 9 ...

A new face has been added to the solar system's family portrait: Scientists have discovered a new dwarf planet looping around the sun in the region beyond Pluto ...

A possible dwarf planet, like Pluto, has been observed in our solar system, according to a preprint published in arXiv. The area of space where this planet was found was previously thought empty.

In the cold, distant reaches of the Solar System, far beyond Pluto, astronomers have just identified what could be a new dwarf planet. It's called 2017 OF 201, a rock that appears to be some 700 ...

So many unexplored secrets still lie at the outskirts of our solar system, where a potential candidate for a new dwarf planet lies. Although space beyond Neptune was thought to be mostly devoid of ...

Astronomers have discovered a new pink dwarf planet that has the most distant orbit in our solar system. The discovery suggests there could be thousands of similar planets beyond the known edge of ...

WASHINGTON (Reuters) -Scientists have identified an object about 435 miles (700 km) wide inhabiting the frigid outer reaches of our solar system that might qualify as a dwarf planet, spotting it ...