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'Planet Y' theory hints at hidden Earth-size world lurking in the solar system — and it could be much closer to us than 'Planet Nine'
A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...
Astronomers have found new evidence, revealing the existence of an unseen and mysterious planet that could be hidden in the solar system. The new research study which is published in the ...
A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...
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What if the mysterious Planet X actually turned out to be real
The bold question-askers at What If consider the implications if Planet X were real. Florida property tax to be eliminated ...
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