Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Without its magnetic field, life on Earth would not be possible ...

A team of geologists found for the first time evidence linking regions of low seismic velocity and the shape of the Earth’s magnetic field.

Earth's magnetic field is generated by the churn of its liquid nickel-iron outer core, but it is not a constant feature.

The continent-sized blobs are much hotter than the lower mantle, creating a significant temperature gradient in the rocky ...

Learn about the continent-sized rocks hidden deep within Earth's mantle that have influenced the magnetic field for millions ...

A 3.7-billion-year-old record of our planet's ancient magnetism has been unearthed, providing evidence that Earth's magnetic field already existed very early in history. This discovery, however, is ...

Add Yahoo as a preferred source to see more of our stories on Google. Earth's Flipping Magnetic Field Heard as Sound Is an Unforgettable Horror Earth's magnetic field dramatically flipped roughly ...

A groundbreaking study,published in Nature Geoscience, has revealed the existence of two massive blobs of superheated rock ...

The findings of a new study by the University of Liverpool provides further evidence of an approximately 200-million-year long cycle in the strength of the Earth’s magnetic field. Researchers ...

Earth is an island of tranquility in a sea of searing solar radiation and energetic particles, and we have the planet's magnetic field to thank. Scientists searching for early records of Earth's ...

During a brief but dramatic chapter in Earth's history about 41,000 years ago, the planet’s magnetic field nearly collapsed. What followed was a cascade of environmental and biological changes that ...

Although the Earth’s magnetic field is reliable enough for navigation and is also essential for blocking harmful solar emissions and for improving radio communications, it’s not a uniform strength ...