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Aurora Borealis in Sweden

An aurora happens when solar flares from the sun’s surface fling out into space at speeds of over a million miles per hour and crash into our earth’s atmosphere. The incredible part is that a layer of our atmosphere—the ionosphere—has been set in place to shield our earth from this explosive electrical charge from the sun. When these sun particles, called ions, smash into the ionosphere, the collision creates a glorious display of glowing lights. Let’s watch one here:

Published in: A Child's Geography