Aurora, Mývatn, IcelandMvatn in northern Iceland, midwinter. The lake was perfectly still that night, not a breath of wind, and the temperature was well below freezing. The aurora arrived in slow, building waves before erupting into these broad green curtains that stretched right across the sky. What caught my eye was the lenticular cloud sitting low over the lake, lit from above by the aurora itself. The snow covered lava formations along the shoreline picked up just