It's my fourth winter here, and I'm finally seeing some differently-coloured aurora. It's 8 am, and there's a beaconlike patch of bright bluish green on the horizon in the northeast :)
Apparently, if I had peeked out the window five minutes earlier, I wouldn't have seen just a bluish green glow, but also a rapidly moving and expanding pinwheel of light.
The prevailing theory seems to be a Russian rocket of some sort, but they deny any such thing, and its current status is that of an UFO (literally speaking, that is :) )