There are quirks at the far edge of our solar system, in the form of disturbed objects in the Kuiper belt. One explanation: Planet Nine.

Because the Kuiper Belt had seemed small, one theory had been that the solar nebula that formed our planetary system had also been smaller than normal. The discovery of this Kuiper Belt 2 suggests ...

More detailed knowledge of the orbital structure in the distant Kuiper Belt can reveal or rule out the existence of any hypothetical planet in the outer solar system. The existence of a KBP may also ...

The Kuiper Belt is a term used to describe a region of space located beyond the orbit of Neptune and believed to be filled with the remnants of our solar system's planetary building blocks.

A study suggests an Earth-sized planet, dubbed Planet Y, may exist beyond Neptune, affecting the orbits of icy objects in the ...

A team of astronomers believe they have detected objects moving far beyond the Kuiper belt, suggesting a possible second asteroid belt within our Solar System. The team has presented the findings ...

Arrokoth, a distant object in the Kuiper Belt, contains significant amounts of organic molecules, including complex sugars, giving it the new nickname "Sugar World," a study has reported.

"Space snowman" Arrokoth and other Kuiper Belt objects may contain locked-up ancient ice and gas, suggests a new model that could also explain the explosive behavior of "ice bomb" comets passing ...

New Horizons—the famous NASA spacecraft that flew by Pluto in 2015—is now making new discoveries beyond the Kuiper Belt. With help from the Subaru telescope in Hawaii, scientists have ...

Eleven objects found at the extremities of the solar system could mark the location of a 'Kuiper Belt 2.' When you purchase through links on our site, we may earn an affiliate commission. Here’s ...