May 13, 1921: The New York Railroad Storm
On May 13, 1921, the first in a series of strong coronal mass ejections (CMEs), driven by a huge and complex sunspot group, reached Earth. A second followed the same day, their combined force essentially clearing the space between the Earth and Sun of interplanetary plasma. This allowed a third CME, which hit May 14,Continue reading "May 13, 1921: The New York Railroad Storm" The post May 13, 1921: The New York Railroad Storm appeared first on Astronomy Magazine.
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