Pristine Antarctic ice records the Solar System’s travels
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A section of an Antarctic ice core. Other sections of the core hold very low levels of iron-60, which is found in interstellar dust. Credit: Alfred Wegener Institute/Esther Horvath
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Antarctic ice contains evidence that Earth entered an interstellar dust cloud more than 40,000 years ago1.
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doi: https://doi.org/10.1038/d41586-026-01505-9
References
- Koll, D. et al. Phys. Rev. Lett. 136, 192701 (2026).
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Astronomy and astrophysics
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