Aurora created in a lab
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Aurora created in a lab

Physicists definitively describe how auroras are created.

Physicists led by the University of Iowa report definitive evidence that auroras that light up the sky in the high latitudes are caused by electrons accelerated by a powerful electromagnetic force called Alfven waves.
Physicists led by the University of Iowa report definitive evidence that auroras that light up the sky in the high latitudes are caused by electrons accelerated by a powerful electromagnetic force called Alfven waves. Credit: Austin Montelius, University of Iowa
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