Northern lights or Aurora borealis are greenish and sparkly waves appearing in the sky. People can watch the northern lights in Norway, Alaska and Finland. Many people think about the reason as to why northern lights appear in the sky, the reason for this is:-
Energized particles from the sun slam into earth’s upper atmosphere at speeds of up to 45 million mph, but our planet’s magnetic field protects us from the onslaught. As earth’s magnetic field redirects the particles towards the poles.
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