Researchers believe that 2017 OF201s highly eccentric orbit points to a chaotic origin, possibly caused by a gravitational ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system. The object—which orbits out beyond Neptune—has been named "2017 OF201" by the ...

2017 OF201 is about one-third the size of Pluto, which was reclassified as a dwarf planet in August 2006, and "is likely large enough to qualify as a dwarf planet, and its orbit is extremely wide ...

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region thought to be largely devoid of objects ...

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.

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

Cheng and his colleagues estimate that 2017 OF201 measures about 435 miles across — significantly smaller than Pluto, which measures nearly 1,500 miles across. A dwarf planet is classified as a ...

This icy world, temporarily named 2017 OF201, could be a distant cousin of Pluto — and scientists mean "distant" quite literally. At its farthest point, it's more than 1,600 times the distance ...

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

A new dwarf planet, temporarily named 2017 OF201, has been located in a distant orbit far beyond Pluto. The object, which may be a distant cousin of Pluto, has an orbital path so vast that it ...

It probably qualifies as a dwarf planet, the same classification as Pluto. Temporarily named 2017 OF201, it takes more than 24,000 years to travel around the sun just once along a highly ...