Aurora Borealis.

The aurora borealis, also known as the northern lights, is a natural light display predominantly seen in high-latitude regions around the Arctic and Antarctic. It occurs when charged particles from the sun interact with the Earth's magnetic field, producing stunning colors and patterns in the night sky. The phenomenon can vary in intensity and can manifest as waves, curtains, or arcs of light, often in shades of green, pink, purple, and blue. It's a breathtaking sight that many people travel to see in places like Alaska, Canada, and Scandinavia.