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 ...

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 ...

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 ...

Life as we know it could not exist without Earth's magnetic field and its ability to deflect dangerous ionizing particles. It is continuously generated by the motion of liquid iron in Earth's outer ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. About 565 million years ago, the strength of Earth's magnetic field ...

Magnesium is not usually considered to be a constituent of Earth's core, but its presence there has now been proposed to explain an ongoing enigma — the identity of the energy sources that drive our ...

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 ...

The results place the core at the younger end of an age spectrum that usually runs from about 1.3 billion to 4.5 billion years, but they also make it a good bit older than a recent estimate of only ...

While we have sent probes billions of kilometres into interstellar space, humans have barely scratched the surface of our own planet, not even making it through the thin crust. Roughly 3,000km beneath ...

Without Earth's magnetic field, life on the planet might not exist. For 3.4 billion years, this magnetic field has prevented Earth from becoming extremely vulnerable to high-energy particles called ...

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 ...

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 ...