NOVA: Magnetic Storm DVD
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Item No.: WG37009
What caused the massive March 1989 blackout across Canada and the Northeastern United States? A magnetic storm in Earth's upper atmosphere, but one triggered by a solar flare 90 million miles away, on the Sun's surface. NOVA explores this obscure but potentially serious threat to human life. Was it a fluke, or a harbinger of worse things to come? Will changes in Earth's magnetic field make us more vulnerable to deadly radiation from space?More >
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