A Solar Storm Rocked the Earth 2,700 Years Ago—and Left Traces in Greenland’s Ice

CDU OFFICIAL March 14, 2019

Radioactive chemicals, preserved for thousands of years, reveal that a powerful solar storm swept over our planet around 660 BCE.

from Nova | PBS https://ift.tt/2Cda7LO

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A Solar Storm Rocked the Earth 2,700 Years Ago—and Left Traces in Greenland’s Ice

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A Solar Storm Rocked the Earth 2,700 Years Ago—and Left Traces in Greenland’s Ice

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