In some places, we often see beautiful aurora at night  This strange and mysterious aurora has always attracted us  The reason for the aurora is that high-energy particles (electrons and protons) from outside the atmosphere hit atoms in the upper atmosphere  It is now known that, as part of the solar wind, charged particles are captured by the earth's magnetic field when they arrive near the earth, and they collide with oxygen and nitrogen atoms, Strike away electrons and make them excited ions  These ions emit radiation of different wavelengths and produce aurora in red, green or blue  The formation of aurora is closely related to solar activity  Every year when solar activity is active, you can see a more spectacular Aurora scene
When the night comes, red, blue and green lights fill the night sky, which is extremely spectacular
The aurora scene is extremely spectacular