According to study co-author Dr Fumi Yoshida, Neptune is the only known massive object near the outer Solar System that could ...

As Voyager 1 pushes beyond Pluto, it reveals a shocking truth,the solar system is far vaster and more mysterious than we ever ...

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

Planet Nine should appear stationary over the course of a single day but show detectable movement over months.

NASA launched New Horizons to explore Pluto. In 2019, it visited the furthest object in the Solar System we have seen up ...

Researchers use the Subaru Telescope in Hawaii to find a small object on the outer edge of the Solar System. Nicknamed ...

The Kuiper Belt is an elliptical plane in space spanning from 30 to 55 times Earth's distance from the sun, or 2.5 to 4.5 billion miles (4.5 to 7.4 billion kilometers).

The Kuiper Belt is home to Pluto and thousands of other worlds of varying size. Most of the bodies there are made from the building blocks of our solar system, long since cordoned to distant cold ...

The Kuiper Belt, which lies around Pluto, is a massive component of our solar system. It’s home to several small planets, including Makemake, Eros, and, of course, Pluto.

Pluto and some other known dwarf planets meet the first two criteria but not the third because they orbit in the Kuiper Belt, a region beyond Neptune filled with small icy debris. When Pluto was first ...

Because Kuiper Belt objects are so extraordinarily far away, even our largest telescopes on Earth have trouble spotting the tiny, faint specks. New Horizons, however, will have a much closer view ...