The Northern Lights are a light phenomenon that occurs when energy-rich particles are thrown from the Sun towards the Earth. It occurs in the upper polar atmosphere, between 80 kilometers and rarely over 500 kilometers above the earth's surface, when electrons and protons collide with the atmospheric gas. This gas is supplied with energy which is then emitted again in the form of light. The light emission itself comes mainly from atoms and molecules in the atmosphere and not from the primary particles themselves.