Aurora

Aurora (also known as the polar lights) are a natural display of curtains, rays, spirals, and flickering patterns of light in the northern and southern polar latitudes. They are most visible after dark.

About Aurora
  • Auroras are the result of charged particles (electrons) produced by the Sun (solar wind) interacting with Earth’s magnetosphere.
  • The magnetosphere accelerates electrons as they  plunge into the atmosphere during their final few 10,000 km journey from the Sun.
  • The colour and pattern of aurora depends partly upon the amount of acceleration imparted to the precipitating particles.
References
  • https://en.wikipedia.org/wiki/Electron