Kathryn Schulz reports on severe solar storms, which may have the potential to upend many technologies essential to our daily lives, from G.P.S. and the power grid to communications satellites and FEMA emergency-response systems.
When Tegnell’s father returned from Korea, the family moved away, and then moved often. But eventually Tegnell returned to the Bay Area—this time to attend Berkeley, which, by the late nineteen-sixties, was another island of odd people. While taking an astronomy course there, he attended a lecture by a not yet famous scientist named Carl Sagan. Interested in things that happen in the sky and unmoved by the hippie culture around him, Tegnell joined the Air Force, in 1974.
One day after launch, thirty-eight of them lost orbit and suffered catastrophic failure. SpaceX still plans to launch tens of thousands of satellites in the coming years, and other entities are likewise expanding their fleets, deploying space-based technology for everything from wildlife tracking to intelligence gathering. But, of all the satellites in the sky right now, none are more crucial than those which constitute our Global Positioning System—or, to use the more universal term, G.N.S.S.
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