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Auroras - Northern and Southern Lights

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What Causes an Aurora?
Diagram of the Causes of Auroras

The interaction of electrons from the sun with earth's magnetic shield cause the beautiful auroras we see in the sky.

NASA
Auroras are caused by the bombardment of solar electrons on oxygen and nitrogen atoms. The electrons literally excite the oxygen and nitrogen atoms high in the atmosphere to create the beautiful light show we know as an aurora.

Auroras Are Like Neon Lights Neon lights work by exciting gases inside of a tube with electricity. The resulting colors that you see are a result of the different gases used to make neon lights. In an aurora, the neon colors you see are the different wavelengths of light from gases high in the atmosphere.

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