Researchers believe that 2017 OF201’s highly eccentric orbit points to a chaotic origin, possibly caused by a gravitational ...

Astronomers have uncovered a distant celestial body that may be a new dwarf planet, orbiting the Sun from more than twice the distance of Pluto. Found by researchers at the Institute for Advanced ...

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

OF201, the object belongs to the same all-star family as Pluto: dwarf planets. Its diameter, roughly 435 miles (700 km), is ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Earth has a newly-discovered neighbor ... sent back," he said. The new object could also challenge the hypothesis that there's a "Planet X" or "Planet Nine" beyond Pluto, with gravity affecting ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

New James Webb Space Telescope data reveal Pluto's high-altitude haze is a key driver of the climate on the dwarf planet, ...

The new object is one of the most distant visible objects in our solar system. Astronomers have indeed discovered a potential new dwarf planet in the outer reaches of our solar system, far beyond ...

A new dwarf planet, temporarily named 2017 OF201, has been located in a distant orbit far beyond Pluto. The object ... University graduate students, found the new dwarf planet while searching ...

Astronomers have discovered a new small planet far from Pluto, expanding our understanding ... size of known dwarf planets and big asteroids like Ceres.Its orbit is extremely elongated, swinging ...