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A comment on US Department of Energy: Fusion Ignition Achieved. Parent comment
>all the atoms in our universe/galaxy/solar system with a mass up to that of iron are formed in the core of stars
Roughly 90% of the helium atoms in the universe were created via Big Bang nucleosynthesis.
https://en.wikipedia.org/wiki/Big_Bang_nucleosynthesis
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Roughly 90% of the helium atoms in the universe were created via Big Bang nucleosynthesis.
https://en.wikipedia.org/wiki/Big_Bang_nucleosynthesis