Scientists had previously believed that no celestial bodies existed in the vast, empty section of space beyond Neptune.

Astronomers have found a new minor planet beyond Pluto. This object, named 2017 OF201, is quite large. It orbits far from the ...

A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...

Astronomers have announced the discovery of a new dwarf planet in our solar system, named 2017 OF201. Located far beyond ...

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Beyond Pluto and Charon, these findings could revolutionize ... long-standing questions about the origins and evolution of celestial bodies across the cosmos. Note: Materials provided above ...

It must have cleared all other celestial bodies, except its own moons ... where thousands of objects sit beyond the orbit of Neptune. Pluto, therefore, is not the gravitationally dominant object ...

There are also five additional celestial bodies called dwarf planets, including Pluto, Ceres, Eris, Haumea and Makemake. Grad student discovers planet orbiting around nearby star, astronomers say ...

The IAU defines a planet as a celestial body orbiting the ... 1992 QB1, a tiny body orbiting out in Pluto's vicinity and beyond the orbit of Neptune. Many more such objects were soon uncovered ...