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Dupe from another news source: "Radioactive traces in tree rings reveal Earth’s history of ‘radiation storms’" https://news.ycombinator.com/item?id=33340066 ht
by asicsp 4y ago
Dupe from another news source: "Radioactive traces in tree rings reveal Earth’s history of ‘radiation storms’"
https://news.ycombinator.com/item?id=33340066 https://news.ycombinator.com/item?id=33340066 (135 points | 3 days ago | 88 comments)