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Ejections of plasma from the sun can create geomagnetic storms when they smash into Earth’s atmosphere
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The largest recorded solar storm in history, the Carrington event of 1859, may have been even rarer and more extreme than we thought, according to rediscovered magnetic data gathered at the time.
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Why the next big solar storm might hit Earth without warning
In early September 1859, a massive solar flare was seen and a coronal mass ejection – a bubble of plasma and magnetic field expelled from the sun’s corona – struck…
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