Aurorae are sun explosions that travel into earths atmosphere. The explosions can be solar flares, solar winds or coronal bargain ejections. It is the latter that most often causes the northern lights. These ejections are caused when a solar wind breaks through the suns outer(prenominal) atmosphere (the corona). The wind begins equivalent this: The suns surface is much air-conditioned than its inside, which is several meg degrees. In the suns corona, the temperature rises again to several million degrees. This heat causes such violent collisions between gas particles that atoms decay into electrons and nuclei. What was once henry becomes a gas of free electrons and protons called plasma. This plasma escapes the suns corona through a hole in the suns magnetised field. As the plasma escapes, they are swirled by the rotation of the sun, like the swirls in a bowl of batter beaten with an galvanizing mixer. After 2-5 days, the plasma reaches the earths magnetic field , traveling at about 5 million miles per hour.
Most of the proton and electron debris stays outside our atmosphere, but a few disseminate and are magnetically attracted to the North and South poles (where they are called the southerly lights) where they collide with the atoms and molecules in our atmosphere. This collision charges the particles in our atmosphere with great energy. Then those particles revert back to their original energy levels and distribute the supercharge they received from the sun particles.
In more detail, the unconscious process is like this: Most of the northern lights form from the electrons that accelerate into the atmosphere. Their energizing energy changes to visible light as follows: A hydrogen atom in our atmosphere is made up of a single positive proton nucleus around...If you want to get a full essay, order it on our website: Orderessay
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