A solar coronal mass ejection hits Earth's…
September 1860 CE
A solar coronal mass ejection hits Earth's magnetosphere on September 1, 1860, and induces one of the largest geomagnetic storms on record.
September 1860 CE
A solar coronal mass ejection hits Earth's magnetosphere on September 1, 1860, and induces one of the largest geomagnetic storms on record.