Saturday, March 8, 2014

Earth's Plasma Shield Weathers Solar Storms


Whenever there’s a solar storm, NASA astronomers begin worrying about what’s going to happen with the charged particles associated with it—if the storm ejects enough of them at us, they can short out satellites and can potentially do damage to Earth’s electrical grid. But, normally, there are very few impacts on Earth. Researchers have finally discovered why: Earth has a plasma shield that pushes back against those particles during an incoming storm.

Earth's Plasma Shield Weathers Solar Storms

Researchers explain why the power grid is safe from all but the craziest solar storms.

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