From University of Oulu, Finland:Space Physics Textbook:Auroras:Folklore:
"Aurora may well have been the source of Chinese dragon legends. The twisting snake-like forms of active auroral bands are often portrayed as celestial 'serpents' in ancient chronicles. European dragon legends, too, may have their origin in auroral activity. How ironic that the English patron saint (St George) is now thought by many researchers to have had his legendary battle with that most Scottish of phenomena, the aurora, rather than a dragon!"