Aurora borealis are natural light displays in the Earth's sky, usually visible around the around the Arctic region. Auroras occur when the Earth's magnetosphere is disturbed by the solar wind. Both, the solar winds and the magnetospheric plasma contain charged particles, electrons and protons. When these collide, the protons and electrons for Hydrogen atoms. This fusion releases energy which is visible in the form of a tiny flash. Depending on the amount of energy becoming available, the flash has a different color. Most of the time, the color is green-blue, but also red or yellow can be observed. All of these flashed together appear as moving or "dancing" lights.
Auras can occur at different altitudes and different mechanisms can lead to the emission of light. While science still has not fully understand the whole phenomenon, most people just enjoy watching them. Some of them travel for hours to just to hope to be able to see them.
This discs comes with a scenic disc showing a boreal forest. The horizon of the Arctic with the trees of a taiga, the experience becomes even more realistic as it can be seen in nature.