Aurora over a living hut named "Balleny" (after an explorer) at Mawson base in Antarctica. This was actually the hut I shared with several others. To give some idea of the brightness of the auroras, this was taken on daylight 25 ISO Kodachrome slide film. It still required a slow exposure (from memory about two minutes, hence star trails) which caused some reciprocity failure in the film, resulting in colour changes - I've tried here to compensate for that in processing the slide copy.

I'd intended to upload this image as a replacement for a very small one posted years ago. Unfortunately that's not possible at present. I have, however, included as a PiP an image of another aurora across Mawson.