Stellar Nucleosynthesis: Where the Atoms in Your Body Came From

The hydrogen in your blood was forged in the Big Bang. The carbon in your bones, the oxygen in your lungs, the iron in your hemoglobin — all of it was made inside stars and scattered across space when those stars died. The story of how the elements came to be is one of the most beautiful results in modern astrophysics.

April 10, 2026