"Multicolor Aurora Borealis -Beautiful" northern lights also has the rainbow flavor.
Travel Tips :: When and where to see the Northern Lights :: Infographic of the Northern Lights: how they occur, where and when to see them.
5 More Things No One Ever Tells You About the Northern Lights - Luxe Adventure Traveler. This has great information about the Northern Lights.
I want to see the Aurora Borealis. Orig pin: From Canada, to Alaska, to the cold mountains of Sweden, here are some of the best places to travel to if you want to see Aurora Borealis herself.