For years, scientists have been scanning the icy outskirts of our Solar System for an unknown massive planet. The ...

The Keck Observatory and NASA’s Hubble Space Telescope may have uncovered a "potential three-body system in the Kuiper Belt," ...

There appears to be a gap between 55 AU and 70 AU where no objects have yet been found, and then a second belt — let's call it "Kuiper Belt 2" — between 70 and 90 AU, which is as far out as 13 ...

“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 ...

Some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find proof.

Dust to dust. There is another potential thing that the New Horizons team is watching out for, and that is whether the new objects are binary. About 10 to 15 percent of all known Kuiper Belt ...

Amazon's next group of Kuiper satellites could soon reach orbit, propelling the company closer to providing internet to ...

The only Kuiper Belt objects that have been explored in detail are Pluto and the smaller object Arrokoth, which NASA's New Horizons mission visited in 2015 and 2019, respectively.

Then, on Jan. 1, 2019, it arrived at its next major target, a Kuiper Belt object roughly 4 billion miles from Earth. This icy red dumbbell-shaped world, only 21 miles wide, ...

There are also a few other hang-ups, as these Kuiper Belt bodies can become unstable during their journey toward the inner Solar System, and such a catastrophic impact on Mars could instigate ...

The Kuiper Belt itself is named after the late Dutch astronomer Gerard Kuiper, widely considered to be the father of modern planetary science. Where is Project Kuiper located?