Earth Overdue for a magnetic field flip with possible enormous consequences...

LONDON — The discovery by NASA rover Curiosity of evidence that water once flowed on Mars — the most Earth-like planet in the solar system — should intensify interest in what the future could hold for mankind.

The only thing stopping Earth having a lifeless environment like Mars is the magnetic field that shields us from deadly solar radiation and helps some animals migrate, and it may be a lot more fragile and febrile than one might think.



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World is screwed anyhow... don't think a total wipe out would be a bad thing...