Aurora spiral over Norway The wonderful green spiral was snapped over the rock of Bleik Island 300km inside the Arctic circle. The image was taken from the neighbouring isle of Andoya, a peat covered expanse with some mountains rising above the bogs. The colour is emitted by excited atoms of nitrogen a hundred kilometres up as they are tickled by the energy of a solar flare event. Bleik is famed for one of Europe's largest puffin colonies. Loz Image credit: Frank Olsen via EPOD
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