Ars Technica had a longer article on this: https://arstechnica.com/science/2012/05/1859s-great-auroral-stormthe-week-the-sun-touched-the-earth/ https://arstechn

Ars Technica had a longer article on this: https://arstechnica.com/science/2012/05/1859s-great-auroral-stormthe-week-the-sun-touched-the-earth/ https://arstechnica.com/science/2012/05/1859s-great-auroral-...