Book excerpt: “Challenger” by Adam Higginbotham

Simon & Schuster We may receive an affiliate commission from anything you buy from this article. British journalist Adam Higginbotham, author of “Midnight in Chernobyl: The Untold Story of the World’s Greatest Nuclear Disaster,” returns with his exhaustively-researched new book, “Challenger: A True Story of Heroism and Disaster on the Edge of Space” (Simon & Schuster),

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When will the next big solar storm slam Earth? New discovery about sun’s magnetic field could improve forecasts

New research indicates the sun’s magnetic field originates much closer to the surface than previously thought, a finding that could help predict periods of extreme solar storms like the ones that slammed Earth earlier this month. The magnetic field appears to generate 20,000 miles beneath the sun’s surface. Previous calculations put the roots of this

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