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.

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 ...

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

A new study suggests the existence of Planet Y. This hidden planet may be affecting the Kuiper Belt. The gravity of Planet Y ...

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.

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 ...

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

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.

New discoveries of objects in the Kuiper Belt have also presented challenges for the Planet Nine theory. The latest is known as 2023 KQ14, an object discovered by the Subaru telescope in Hawaii.