Scientists find iron-60 stardust in Antarctic ice, trace to supernovae
NewsBytes | May 19, 2026 6:39 AM CST
Older Antarctic layers have less iron-60
By melting and analyzing 300kg of Antarctic ice, the team noticed that older layers (40,000 to 80,000 years old) had less iron-60 than fresh snow.
This points to changing waves of interstellar dust reaching Earth, and hints that these atoms came from a nearby star explosion.
Next up: the researchers want to dig even deeper into older ice to map out our solar system's journey through the galaxy.
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