If you've seen the movie "The Core" you may have had a little introduction on what could happen (obviously with added Hollywood exaggeration and drama) but the idea is that Earth is protected by a Force Field and this Shield is generated by the Earth's magnetism.
Now the fact that the Sun is spitting something onto us has been discussed over and over during history and it involved a lot of changes coming...
What If Earth's Magnetic Poles Flip? | Scientists Discuss the Effects of a Geomagnetic Field Reversal | LiveScience: The last reversal happened 780,000 years ago during the Stone Age, and indeed there's evidence to suggest the planet may be in the early stages of a pole reversal right now.
But should we really fear this event? What will actually happen when north-pointing compasses make a 180-degree turn toward Antarctica? Will the continents tear themselves apart, or are we in store for much more mundane changes?
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