What are the Northern Lights? (Video) (IMAGE) American Chemical Society Caption Every winter, thousands of tourists head north hoping to catch a glimpse of the luminous auroras dancing in the sky. In this episode of Reactions, we're sharing tips on how to increase your chances of seeing one and breaking down the chemistry behind the colors of this awe-inspiring wonder: https://youtu.be/8S_LPFOa-zs. Credit The American Chemical Society Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.