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  1. The Big Bang created over 99.9% of the atoms in the current universe, but these are limited to Hydrogen and a little bit of Helium.
  2. Stellar fusion created most of the Helium and the elements from Lithium through Nickel and Iron.
  3. Supernova explosions created all the rest of the elements, including quite a few transuranic elements.
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13y ago

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