the sun is 93 million miles away. But its effects extend far beyond
its visible surface. Great storms on the sun send gusts of charged
solar particles hurtling across space. If Earth is in the path of the
particle stream, our planet’s magnetic field and atmosphere react.
When the charged particles from the sun strike atoms and molecules in Earth’s atmosphere, they excite those atoms, causing them to light up.
Mar 9th, 2015
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