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  - WN.COM - Science - 21/Jun 19:09

Why Earth’s Magnetic Pole Reversals Are So Fascinating

A rare geological event occurs every 300,000 years or so: the Earth’s magnetic poles flip. The magnetic poles are the two ends of the magnetosphere, which surrounds the Earth like a giant, invisible force field. This celestial shield protects the planet by fending off solar wind, particle radiation and cosmic rays – particles which, if allowed in, can disrupt electronics, cause cancer and trigger all kinds of havoc. Unlike a typical shield, the magnetosphere is no static barrier. It exists in a state of constant flux and dynamism, waxing and waning depending on the...

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