Huge solar storm could wreak havoc by 2020

03/1/2012 |

Scientists say there's a one-in-eight chance that the sun will erupt in a huge solar storm by 2020, with the possibility of colossal damage to Earth. The last such "mega-flare," known as the Carrington Event, occurred in 1859 and triggered electromagnetic surges that set fire to telegraph stations. This time around, scientists say, a solar storm could knock out electrical grids and communication networks worldwide, causing damage that could take a decade to recover from.

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