Solar flares have long been known to muck with some of our networks, namely satellites, communications systems and even power grids. Now we can add a new vulnerability to that list: navigation systems.
Scientists at the National Oceanic and Atmospheric Administration say they observed two powerful solar flares in December of last year. Those were followed by a huge radio burst that knocked out GPS receivers on the sunlit side of the planet. The burst produced 20,000 times more radio emission than the entire rest of the sun, according to scientists at the New Jersey Institute of Technology.
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