Science Focus
original post »Since 2010, the best estimate of the age of Earth’s magnetic field has been 3.45 billion years. But now
The post Researchers find that Earth’s magnetic shield is 500 million years older than previously thought has been published on Technology Org.
#physics
» see original post http://feedproxy.google.com/~r/TechnologyOrgPhysicsNews/~3/bl2S-gxHJBk/
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