The auroras in the upper atmosphere are caused by

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The auroras in the upper atmosphere, also known as the Northern and Southern Lights, are caused by the interaction of the solar wind and upper layers of Earth's atmosphere. As charged particles from the sun reach Earth, they are funneled toward the poles by Earth's magnetic field. When these particles collide with gas molecules in the upper atmosphere, they emit light and create the beautiful glowing auroras.

The Auroras in the Upper Atmosphere Are Caused by