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Iron-60 in Antarctic Ice May Trace Earth’s Passage Through an Interstellar Cloud
Key Takeaways
- Researchers are studying iron-60 in Antarctic ice as a tracer of nearby supernova activity.
- A new paper argues the isotope may record the structure of the Local Interstellar Cloud.
- Iron-60 has no Earthly source and a half-life of about 2.6 million years, making it a useful cosmic marker.
- The work builds on a 2019 first detection of iron-60 in Antarctica.
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DT Editorial Team··via universetoday.com