A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 ...

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Researchers discovered a new trans-Neptunian object, 2017 OF201, potentially a dwarf planet, in the outer solar system.

Astronomers announced the discovery of a new dwarf planet, provisionally named 2017 OF201, located in the remote outskirts of ...

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The researchers said 2017 OF201 was identified in observations by telescopes in Chile and Hawaii spanning seven years.

They said: ‘The discovery of 2017 OF201 is significant because it’s found in a region of the Solar System thought to be empty ...

As explained in a pre-press paper [PDF] titled “Discovery of a dwarf planet candidate in an extremely wide orbit: 2017 OF201” ...

Scientists have discovered a colossal object approximately 435 miles wide in the frigid outer reaches of our solar system, ...