What You Didn’t Know You Didn’t Know About the Aurora Borealis: How the Northern Lights Work and How We Solved the Science of the Cosmic Spectacle

On the evening of February 19, 1852, a scientist at the New Haven station of the nascent telegraph witnessed something extraordinary: A blue line appeared upon the paper, which gradually grew darker and larger, until a flame of fire followed the pen, and burned through a dozen thicknesses of the pr

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