How Wood Records the Sun’s Most Violent Outbursts

February 13, 2026 Universe Today

How Wood Records the Sun’s Most Violent Outbursts
By Mark Thompson (https://ift.tt/bQ0sZ7A)

Tree rings seen in a cross section of a trunk of a tree (Credit : Arnoldius)

Ancient trees hold secrets about the most violent storms our Sun has ever unleashed, catastrophic bursts of radiation that dwarf anything modern civilisation has experienced. Scientists have discovered radioactive carbon signatures frozen in tree rings from solar storms so powerful they could cripple our satellite networks and power grids today.

February 13, 2026 at 02:52PM
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