Panorama of a substorm outburst during the great display of the Northern Lights on 10 May 2024. Here they create an overhead corona with rays converging to the magnetic zenith (south of the true zenith) amid clouds. The rays show a rich mix of oxygen greens and reds, as well as nitrogen blues blending to create purples. Some green and red are mixed to make yellows. South is at centre here. The bright star Arcturus is below the zenith point. The constellation of Corona Borealis is left of the convergence point. Image captured from southern Alberta, Canada.