Earth's magnetic field: Explained

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Our protective blanket helps shield us from unruly space weather.

And just to make things that little more confusing, what we call the North Magnetic Pole is actually a south magnetic pole… bear with me on this. Magnetic field sources are dipolar, meaning they have a north and south pole. And when it comes to magnets, opposite poles attract while other poles repel.

So when a compass points north, it is actually attracted to the south magnetic pole which lies close to the Geographic North Pole, according to PhysicistUnlike the geographic poles, Earth's magnetic poles are not fixed and tend to wander over time.

 

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