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Astronomy Cast Ep. 442: Destroy and Rebuild Pt. 6: Magnetic Pole Reversal

Friday, March 3, 2017 13:19
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If we look back into the geologic record of the Earth, it appears that our planet’s magnetic field flips polarity every few hundred thousand years or so. Why does this happen? When’s it supposed to happen next? Is it dangerous?

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The post Astronomy Cast Ep. 442: Destroy and Rebuild Pt. 6: Magnetic Pole Reversal appeared first on Universe Today.



Source: http://www.universetoday.com/134117/astronomy-cast-ep-442-destroy-rebuild-pt-6-magnetic-pole-reversal/

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