... the interaction between energetic plasma particles from outside atmosphere with atoms of higher atmosphere. Till now, not all the questions about aurora have been answered, but with the escalating astronautic technology, we have a much better understanding on this puzzling phenomenon. How does aurora form? At every moment the sun is giving out charged particles in solar wind. Some of these particles are captured by the earth magnetic field and the bombardment of the solar wind with the atmospheric particles in the poles will then gives out energy as light. However this is just the basic principle of the formation of aurora, there are many more mechanisms going on at the same time which when they add up together will give rise to this stunning phenomenon. Earth and its outer space It is commonly believed that earth lies in an empty space in the universe which is vacuum. This is not absolutely true because ...

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