fyeahuniverse: Nemesis. Nemesis is a hypothetical red dwarf or brown dwarf star said to be orbiting our sun past the Oort Cloud. Originally proposed in 1984, it was offered as an answer to the periodic mass extinctions on Earth, which occur about
fyeahuniverse: Nemesis. Nemesis is a hypothetical red dwarf or brown dwarf star said to be orbiting our sun past the Oort Cloud. Originally proposed in 1984, it was offered as an answer to the periodic mass extinctions on Earth, which occur about