A mysterious new world may be hiding in the outer reaches of our solar system. According to arecent study published on arXiv ...

The initiative is named after the Kuiper belt, a doughnut-shaped region of icy bodies in our solar system extending far beyond the orbit of Neptune – the farthest planet from the sun.

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

Orbiting in the far reaches of the solar system are pristine remnants from its beginning. These unique objects, called ...

The initiative is named after the Kuiper belt, a doughnut-shaped region of icy bodies in our solar system extending far beyond the orbit of Neptune – the farthest planet from the sun.

One of the strongest hints of an undiscovered planet lies in the Kuiper Belt, a disc of icy objects beyond the orbit of Neptune that's home to comets and dwarf planets like Pluto.

New discoveries of objects in the Kuiper Belt have also presented challenges for the Planet Nine theory. The latest is known ...

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

Planets Potential discovery of new dwarf planet adds wrinkle to Planet Nine theory 017OF201 is a trans-Neptune object with a unique orbit located past the Kuiper Belt ...

Spotting 2017 OF201 beyond the Kuiper Belt, a donut-shaped section of space past the orbit of Neptune filled with icy debris, suggests the region may not be as empty as previously thought.