Looking like a massive firework display, this spectacular northern lights photo shows green and purple colours rippling across the Arctic sky. The picture was taken on September 16 2010, near Skittenelv in the Tromsø area, in northern Norway, by photographer Ole Christian Salomonsen.
The aurora borealis is a reflection of recent solar activity which has caused some amazing light shows. The light is caused by explosions on the surface of the sun which throw out electrically charged particles towards the earth.
When the solar wind carrying the particles hits our atmosphere it is swept towards the poles by our magnetic field where the particles react with ions in the atmosphere, causing nature's greatest light show. See the next photo for another amazing display..
...This picture of the northern lights - taken by Thilo Bubek - was also shot near Tromso in northern Norway earlier this month
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