What is the Aurora Borealis and how does it occur

The pictures below are not taken from the films are real natural phenomenon called Aurora Borealis. This phenomenon occurs only at the poles of the Earth appears wavy lights in the sky are a picturesque give joy to watch. The phenomenon occurs when the lights hit the solar wind carrying electrons with atmospheric elements, as a result of this collision emits the radiation problem of different colors in the sky. The color varies depending on which component and the height of the collision, the oxygen, for example, is a green and red to varying heights, either nitrogen, is blue and purple.

Borealis. The Incredible Northern Lights, Aurora Borealis Of February 2013. Review

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