# Where Elements Come From

Explain stellar nucleosynthesis: the Big Bang produced mainly hydrogen and helium; main-sequence fusion builds elements up to iron; and supernovae produce elements heavier than iron and scatter them into space — meaning the atoms in our bodies were forged in ancient stars

Builds on: Life Cycle of Stars (hard, https://ai.page/c/life-cycle-of-stars/en.md), Atoms, Elements & Compounds (soft, https://ai.page/c/atoms-elements-and-compounds/en.md)

Concept id: where-elements-come-from. Subject: science. Licence: CC BY-SA 4.0.

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