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21
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124
forecasters
Will Planet Nine be discovered before 2030?
12%
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Authors:
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Opened:
Oct 1, 2020
Closes:
Apr 15, 2026
Scheduled resolution:
Jan 1, 2030
Spot Scoring Time:
Oct 3, 2020
Natural Sciences
Space
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Scientific American
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Oct 14, 2025
The secret world lurking in Earth's backyard: Scientists say a 'Planet Y' could be hiding in our solar system
Daily Mail
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Oct 14, 2025
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