What did Earth's ancient magnetic field look like

What did Earth's ancient magnetic field look like Washington DC (SPX) Jun 28, 2016 - New work from Carnegie's Peter Driscoll suggests Earth's ancient magnetic field was significantly different than the present day field, originating from several poles rather than the familiar two. It is published in Geophysical Research Letters. Earth generates a strong magnetic field extending from the core out into space that shields the atmosphere and deflects harmful high-energy partic ... more

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