Sedna is a tiny rocky object, perhaps a Dwarf Planet at the outer reaches of the Solar System. Sedna is so far away that it takes roughly 10,000 Earth Years to orbit the sun. [1] That means when Sedna was last in the same place relative to the sun where it is now Humans were just emerging from the last Ice Age. [2]


  1. Earth-Sized World Could Lurk in Outer Solar System
  2. CO2 'drove end to last ice age'

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