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 ...

At the present day, the geodynamo is powered primarily by compositional buoyancy 3,4,5 due to the crystallization of the inner core from the outer core, which started around one billion years ago 2,6.

Scientists have wondered why the polarity of Earth's magnetic field occasionally reverses. Recent studies of fer intriguing clues about how the next reversal may begin Most of us take it for granted ...

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 ...

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 ...

For decades, researchers have known that Earth’s inner core behaves strangely, acting both solid and oddly soft at the same ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 99, No. 22 (Oct. 29, 2002), pp. 14020-14025 (6 pages) If relationships exist between the frequency of geomagnetic ...

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 ...

About 565 million years ago, the strength of Earth's magnetic field dipped to its lowest point and almost collapsed completely, scientists have discovered. However, at this point, the planet's inner ...

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 ...

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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 ...