Science
We found the first Australian evidence of a major shift in Earth’s magnetic poles. It may help us predict the next – The Conversation AU
Researchers have found the first Australian evidence of this global event, during which people on Earth would have witnessed a multitude of spectacular auroras.
About 41,000 years ago, something remarkable happened: Earths magnetic field flipped and, for a temporary period, magnetic north was south and magnetic south was north.
Palaeomagnetists refer to this as a geomagnetic excursion. This event, which is different to a complete magnetic pole reversal, occurs irregularly through time and reflects the dynamics of Earths molten outer core.
The strength of Earths magnetic field would have almost vanished during the event, called the Laschamp excursion,…
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