Beyond Neptune lies the Kuiper Belt, a vast region of icy bodies that holds the secrets to the solar system’s formation.

It must have cleared all other celestial bodies, except its own moons, from its orbit.

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the ...

In a clean room at NASA's Jet Propulsion Laboratory in Southern California, scientists have successfully integrated a crucial ...

Are there hidden planets in our solar system? New technologies, like the powerful Rubin Observatory, brings us closer to ...

A solar wind event squashed the protective bubble around Uranus just before Voyager 2 flew by the planet in 1986, shifting ...

Astronomers are investigating the possibility of a hidden ninth planet beyond Neptune, which could explain unusual orbital patterns in the Kuiper Belt.

Scientists have been on the hunt for a possible ninth planet in our solar system for some time ... noted that Planet Nine’s ...

We're showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to ...

A new study suggests that the planet’s icy interior and liquid ocean could be insulated with a three-to-six-mile-thick layer ...