Earth’s magnetic shield is shifting in dramatic ways. New data from ESA’s Swarm satellites show that the South Atlantic Anomaly — a vast weak spot in Earth’s magnetic field — has grown by nearly half ...

Earth’s magnetic field, generated deep within the planet’s liquid iron core, has been bending, stretching, and occasionally flipping for billions of years. That invisible shield determines whether ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: It used to be thought that there were more volatiles ...

A stream of charged particles known as the solar wind flows from the Sun toward Earth. Here, it meets the Earth's magnetic ...

The Earth's magnetic field and oxygen evolved together over 540 million years, according to a major NASA study.

Earth’s magnetic field can linger in a weakened, unstable state for tens of thousands of years before fully flipping.

Did Earth's magnetic field help make life possible on the planet? A new NASA-funded study suggests the answer may lie deep in geological time and the link could be stronger than once believed. Earth ...

Earth's magnetic poles flip in a process called a geomagnetic reversal. The planet's magnetic field is generated by chaotic flows of molten metal deep inside Earth's core.