News and articles on the topic ninth planet

New dwarf planet found in the solar system, there may be more

News Science and space 09-03-2025 comment
American astronomers have discovered a new dwarf planet at the edge of the solar system, which has already been named 2017 OF201. 

Astronomers may have found the ninth planet in the solar system

News Science and space 05-26-2025 comment
Astronomers may have found a new candidate for the role of the ninth planet in the solar system.

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