Cutaway Graphic of Van Allen Belts
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Cutaway Graphic of Van Allen Belts

April 28, 2014
An artist's depiction with cutaway section of the two giant donuts of radiation, called the Van Allen Belts, that surround Earth. A NASA-funded balloon campaign in Antarctica launched in December 2012 and December 2013 is studying what causes bursts of particles to precipitate out of the belts down to Earth. Credit: NASA/Goddard Space Flight Center Scientific Visualization Studio

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