Scientists have mapped how Earth’s deepest mantle is being deformed—and the results point to long-lost tectonic plates buried ...

Scientists discover hidden "ghost plume" that is so powerful that it is physically warping the internal layers of the planet ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." To understand the mantle—the largest layer of Earth’s rocky body—scientists drill deep cores out of the ...

Deep within Earth, subtle variations in how seismic waves travel are revealing a hidden pattern of deformation in the planet’s lowest mantle layer.

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Now, a new paper suggests that the Farallon plate is still making its presence felt far from the coasts, powering one of ...

A sideways flow of hot mantle rock, not a deep plume rising from near Earth’s core, may be feeding one of the planet’s most ...