It's a strange and lucky irony that the worst solar storm in recorded history happened at a time when human civilisation wasn't yet uniquely vulnerable to the Sun's inescapable geomagnetic fury.
The Carrington Event – aka the solar storm of 1859 – saw a huge solar coronal mass ejection unleashed at Earth's protective magnetosphere, producing an epic geomagnetic storm the scale of which modern civilisation had never before witnessed.
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