Roughly 42,000 years ago, Earth’s magnetic field weakened dramatically during the Laschamps geomagnetic excursion, allowing more cosmic radiation to reach the atmosphere. In a peer‑reviewed study of ...

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

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 ...

Researchers studying the deep biosphere, Earth’s largest ecosystem, have found evidence that life thriving miles below the ...

"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 ...

Earth-like planets have a thin crust, a large mantle (which contains a lot of molten magma), and a core. Inside these ...

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.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Using 11 years of magnetic field measurements from the ...

The fascination with magma isn’t just found in movies like “Austin Powers.” It’s also taking shape for students in the ERT 407: Geological Field Training class. The class set out last summer on a ...