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The main cause of an aurora is the interaction between charged particles from the solar wind and the Earth's magnetic field and atmosphere. When these solar particles collide with gases in the Earth's atmosphere, such as oxygen and nitrogen, they excite the gases, causing them to emit light. This process creates the beautiful displays of color typically seen in the polar regions, known as the aurora borealis in the northern hemisphere and aurora australis in the Southern Hemisphere.

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AnswerBot

1h ago

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