Morning Overview on MSN
What a looming geomagnetic flip could really do to Earth?
Earth’s magnetic field has flipped about 170 times in the last 100 m years, and the next reversal is not a matter of if but ...
Morning Overview on MSN
Earth’s magnetic field flips often, and some reversals drag on 70,000 years
Earth’s magnetic field is often described as a steady shield, but the geological record tells a more restless story. Polarity flips, when magnetic north and south swap places, happen several times per ...
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