Have you ever heard of the geodynamo? Perhaps not, but its presence has certainly had a huge impact on your life. The theory describes how Earth's magnetic field is generated and maintained by ...
Sustaining a magnetic field is difficult for a terrestrial planet. Creeping flow of the planet's rocky shell (mantle) restricts heat loss from the underlying core. By comparison, the liquid-iron core ...
The hunt has been on for a source of extra power to account for the dynamo that generates the Earth's magnetic field. A synthesis of computation and experiment now suggests that the search may not be ...
Gleaning data from old rocks may result in bias. Now, geophysicists have a way to improve their methods to overcome challenges in studying the history of the Earth's core and magnetic field that make ...
Physicists in France have linked subtle variations in the length of day with conditions in the Earth’s core – where the Earth’s magnetic field originates. The finding could improve our poor ...
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The day Earth almost lost its magnetic field: What kept the shield alive
Earth’s magnetic field nearly collapsed long ago. What saved it explains why life survived and why the planet remains ...
Scientists have produced a new estimate of just how old the Earth's core is. And it is relatively young, the researchers suggest, with the new study coming in at the bottom of recent estimates. The ...
Knowing when the geodynamo started is important for understanding the evolution of the core, the atmosphere, and life on Earth. We report full-vector paleointensity measurements of Archean to Hadean ...
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Many physical features of Neanderthals might not be for cold climate adaptation as previously thought. They may be for types of locomotion. Which, according to paleo-ecologist, John Stewart at ...
Bias introduced through analyzing the magnetism of old rocks may not be giving geophysicists an accurate idea of how Earth's magnetic dynamo has functioned. A team has shown there is a way to improve ...
Gleaning data from old rocks may result in bias. Now, geophysicists have a way to improve their methods to overcome challenges in studying the history of the Earth's core and magnetic field that make ...
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