Invisible Shield Protecting Earth puzzles Scientists

December 1, 2014 8:52 AM

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Invisible Shield Protecting Earth puzzles Scientists

Surrounded by radiation belts, Earth is being protected by an invisible shield that stops high-speed “killer electrons,” scientists have found after taking a closer look at the Van Allen belt 7,200 miles above our planet.

“Somewhat like the shields created by force fields on Star Trek that were used to repel alien weapons, we are seeing an invisible shield blocking these electrons,” the study’s lead author, Daniel Baker of the University of Colorado’s Laboratory for Atmospheric and Space Physics explained. “It’s an e...

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