Deep beneath the ocean floor, ancient sediments hint that Earth’s magnetic field sometimes changed far more slowly than expected.

Earth’s magnetic field feels steady and dependable, but over geological time it is anything but fixed. The magnetic north and south poles have swapped places many times in the planet’s history in ...

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

Earth’s magnetic poles have flipped many times before, and a future reversal could weaken radiation protection, disrupt ...

Ancient volcanic rocks reveal how two giant hot regions beneath Africa and the Pacific have shaped Earth's magnetic shield.

Hidden mega-structures deep inside Earth may have been quietly steering our planet’s magnetic field—and rewriting what we thought we knew about Earth’s past.

The sun's magnetic pole reversal has increased solar activity, affecting satellites, communications, and space weather. Opinion: The US must take Greenland, whatever the cost The dream of a Florida ...

Add Yahoo as a preferred source to see more of our stories on Google. The Earth's magnetic field deflects particles emitted by the Sun. Mark Garlick/Science Photo Library via Getty Images The Earth’s ...

Here’s what you’ll learn when you read this story: The Earth’s magnetosphere protects life from deadly space radiation, but many aspects of its function remain a mystery. Scientists have long believed ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Oct 23, 2025, 12:48pm EDT Oct 23, 2025, 01:42pm EDT Illustration ...