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Science fact of the day: Earth has a magnetic field

Earth’s magnetic field is caused by our planet’s rapid rotation coupled with its molten nickel-iron core.

Solar wind (a stream of charged particles continuously ejected from the Sun) distorts the shape of the Earth’s magnetic field into a teardrop shape.


The Earth’s magnetic field is what causes compass needles to always point north (toward the North Pole, specifically).


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I learned this in cub scouts…with a compass while camping.

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