Sun storms spark extraordinary auroral light show

Green wispy bands of the aurora borealis — also known as the northern lights — wind and twist through the early autumn sky on Sept. 13 above the small hamlet of Tuktoyaktuk in Canada's Northwest Territories. Solar particles recently expelled from the sun in a huge coronal mass ejection have careened towards the Earth's atmosphere over the past week, providing a magnificent natural light show for skygazers living closest to the Earth's poles. Both photos were taken in Tuktoyaktuk, but the lights were also visible from Iceland. (Photos: savillent/Flickr)