This is a picture of the Iceland sky full of aurora over a month ago. On the ground of the picture is the stratovolcano Öræfajökull. The constellation of Orion lies in the sky next to the aurora. Auroras are caused by the impacted of energetic particles from the Sun hitting the Earth's magnetic environment. Protons and electrons hit the air near the poles and cause winds and light display. I always loved auroras and I thought that it was interesting learning how they form.
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