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.

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

The Size and Orbit of 2017 OF201 The newly discovered object, 2017 OF201, has a diameter of 435 miles (700 kilometers), making it smaller than Pluto, which measures around 1,477 miles (2,377 ...

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

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

In a significant breakthrough, astronomers have detected a Pluto-like planet situated far beyond the known boundaries of the solar system. Identified as 2017 OF201, the icy celestial body may ...

But an international team of astronomers have detected the unmistakable signature of a gas giant planet orbiting the ...

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 May 29, 2025 ...