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Watch: sky swirls green with magical Northern Lights

Tourists just south of the Arctic Circle were treated to a stunning display as the Northern Lights lit up the night sky in Rovaniemi, Finland late on Friday.

Atmospheric conditions on the sun fuelled another breathtaking display, turning the skies a swirling green and prompting tourists and locals alike to rush outside to watch.

Local stargazers say that the Northern Lights appear due to a high coronal hole on the surface of the sun, coupled with strong solar winds.

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