Universe Today -
14 Dec 2025 13:44

Carl Sagan famously said that Were all made of star-stuff. But he didnt elaborate on how that actually happened. Yes, many of the molecules in our bodies could only have been created in massive supernovae explosions - hence the saying. Scientists have long thought they had the mechanism for how settled - the isotopes created in the supernovae flew here on tiny dust grains (stardust) that eventually accreted into Earth, and later into biological systems. However, a new paper from Martin Bizzarro ...
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