This one of the most spectacular optical phenomenon in polar regions. They were created by an interaction of solar wind and the earth’s magnetic field. The charged particles from the sun enter the magnetic field and are channelled towards the magnetic poles. The particles enter the atmosphere in the ionosphere, at the latest 100km over ground, and let the air particles lighting. The aurora lights violet, red or green, depending on the chemical composition of this layer, and it moves in the wind. Polar lights appear at the same time in the Arctic, there they are called Aurora borealis (Northern Lights), and in Antarctica Aurora australis (Southern Lights).

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