The Aurora borealis (or aurora borealis) is a phenomenon in the Earth's atmosphere that occurs near the polar circles. It is caused by the interaction of charged particles with the Earth's magnetic field. When these particles enter the atmosphere, they collide with gas molecules and cause a glow that can be observed as bright colored rays in the sky. The Northern lights usually have a green color, but can also be red, blue, purple or yellow. This phenomenon is one of the most beauti...