If you are a fan of Auroras, Northern Lights or Aurora Borealis as the scientific term is or just beautiful sun phenomena you might be in for a treat tonight. There is currently an alert out for the possibilities to see Auroras in Stockholm tonight, not a common things since Stockholm is a bright big city. Try to find a dark spot, hope for no clouds and watch the night sky patiently and you might be lucky enough to see one of the most beautiful nature shows there is.
If you really want to enjoy and see more of Auras then you probably have to go much further north of course but good luck to your Northen Light hunting!
