Eleven objects found at the extremities of the solar system could mark the location of a 'Kuiper Belt 2.' ...

Beyond the Kuiper Belt is the Scattered Disk, populated by KBOs that have been scattered from the Kuiper Belt by gravitational tides coming from the solar system's outermost planet, Neptune.

Thirty years ago, astronomers found the Kuiper Belt, a region of space home to Pluto and other icy worlds that helped show how the solar system evolved.

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.

Astronomers have uncovered evidence of a potential second Kuiper Belt, expanding the boundaries of our solar system. Here's what this discovery could mean.

“Our Solar System’s Kuiper Belt long appeared to be very small in comparison with many other planetary systems,” Wes Fraser, the lead author of the study from the National Research Council ...

The location of the solar system's outer boundary is a point of contention among astronomers. There are three possible candidates, which "all have merit." But which one is best?

In other observed solar systems, similar belts stretch outward across hundreds of AU. In 2023, about a dozen large objects that lie beyond 60 AU—nearly as far from Pluto as Pluto is from the Sun were ...

Beyond the orbits of the eight planets in our Solar System, several distant objects make up the Kuiper Belt. The extent of this region has been estimated based on the discovery of such objects ...