Do you know what the most abundant element on Earth really is? You might be surprised to know that the answer depends on ...

"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 ...

The inner core of our planet has started spinning slower and slower, new research has revealed Compared to the speed of the Earth's surface, the inner core was previously thought to rotate faster.

Our Earth is structured sort of like an onion – it’s one layer after another. Starting from the top down, there’s the crust, which includes the surface you walk on; then farther down, the mantle, ...

The chemistry at the center of our planet has eluded scientists for centuries. But new research from Arizona State University has shone a light on these mysterious internal processes, suggesting the ...

Earth cross section showing the classic distinction between crust, mantle and core. But new research shows Earth's structure is far more complicated and may change over time. Analyzing an unusual ...

Long-term satellite measurements show that Earth’s magnetic field is changing faster and more unevenly than expected, driven ...

Deep beneath our feet, far below the crust and mantle, Earth’s metallic heart is not as sealed off as geologists once assumed ...

We only have to look up at the Moon to see the remains of a cataclysmic collision between two early planets, billions of years ago. Now scientists suggest evidence may also be deep beneath our feet, ...

Gold and other precious metals are leaking from Earth’s core into the layers above, eventually making their way up to the surface during the formation of volcanic islands like Hawaii, a new study ...