How did the first Aurora happen?

Answer 1

The first aurora, known as the Aurora Borealis in the Northern Hemisphere and Aurora Australis in the Southern Hemisphere, is believed to have occurred when charged particles from the solar wind collided with Earth's magnetic field and atmosphere. This interaction causes the particles, primarily electrons and protons, to excite gas molecules, resulting in the emission of light. The specific colors produced depend on the type of gas involved and the altitude of the interactions. While the exact timing of the first aurora is not known, they have likely been occurring for billions of years since the Earth's magnetic field and atmosphere were established.