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P. Coïsson

Aurora over Mason City, Iowa, spawned by a geomagnetic storm that started 18 September 1941.
Posted inFeatures

The Geomagnetic Blitz of September 1941

by J. J. Love and P. Coïsson 15 September 201610 November 2022

Seventy-five years ago next week, a massive geomagnetic storm disrupted electrical power, interrupted radio broadcasts, and illuminated the night sky in a World War II battle theater.

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