Aurora Borealis in Northern Minnesota on Devilfish lake. I was out on a very dark night enjoying the bright stars, around midnight, I noticed the sky was getting a lot brighter, almost like dawn, then a bright green strip cut the sky in half, circled around, then exploded, filling the sky with greens, silver strobes, and splashes of purple! I was lucky to see this, and glad I had my camera ready! Canon 7D, Tokina 11-16mm at 13 mm f2.8, 6seconds, 1250 iso.