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 on Friday (December 9).<br /><br /> Just after 2300 local time (2100 GMT) 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.<br /><br /> 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.<br />No Comment | euronews: watch the international news without commentary | http://www.euronews.com/nocomment/
