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Related articles:
Red dwarf
Extinction event
Nibiru collision
Oort cloud
Black Moon Clan
Brown dwarf
Key terms: nemesis star sun extinction events muller red dwarf extinction event raup solar system exist earth hypothesis novel orbit periodicity hypothetical nature richard oort cloud brown dwarf million years companion star astronomical impact jackson astronomia sepkoski might whitmire hypotheses magnitude mass extinctions Search external links cited by footnotes on Wikipedia page Nemesis (star): |
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