AI Summary

Scientists have examined the radioactive particles expelled during the Chornobyl disaster, now 40 years later, to determine how much of the original fuel remains and the condition of the material after decades of weathering and decay. The analysis reveals that the chemical pellets have retained a surprising degree of stability despite prolonged exposure to the environment. Understanding this durability informs assessments of nuclear plant safety and helps evaluate when it may be possible to re‑enter the Chornobyl site without protective gear.

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