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Study blames Earth’s magnetic field flip for climate change, extinctions – Ars Technica

Study suggests that one magnetic event caused everything from extinctions to art.



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Enlarge/ The massive trunk of a kauri tree can remain intact for tens of thousands of years.
17 with 14 posters participating, including story author
The Earth’s magnetic field helps protect life from energetic particles that would otherwise arrive from space. Mars now lacks a strong magnetic field, and the conditions on its surface are considered so damaging to life that any microbes that might inhabit the planet are thought to be safely beneath the surface. On Earth, the magnetic field ensures…

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