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Earth's magnetic field formed before the planet's core, study suggests - Livescience.com
The oldest firm age yet for Earth's magnetic field suggests that it developed before a solid planetary core, 3.7 billion years ago.
By: Live Science
- Apr 26 2024
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Earth's magnetic field may have been similarly as strong 3.7 billion years ago as it is today, pushing the earliest date for this planetary protective bubble back 200 million years.Â
The timing puts… [+3774 chars]