Tiny changes in Earth’s rotation may reveal a tug-of-war between its deformable inner core, liquid outer core and deep mantle.

Gravity between Earth's slightly lopsided inner core and dense rock in the mantle explains why the day has stretched and ...

Scientists may have solved why the length of Earth’s day changes by a few milliseconds over decades. Subtle shifts in the ...

Earth's rotation experiences slight variations in day length due to interactions within its inner core and mantle. Researchers have developed a model revealing how gravitational forces drive these ...

The Earth does not hide a proven “second core“, but seismological data show that its interior is much more complex than the ...

Researchers may have found a missing link in how Earth's mantle gets wet: newly discovered iron minerals that can store water at the extremely high temperatures and pressures present near our planet's ...

You might think the length of a day never varies—exactly 24 hours. You'd be wrong, at least if you count days in milliseconds ...

Researchers at Göttingen University have uncovered new evidence that some of Earth's most precious metals began their journey far deeper than once thought. Working with volcanic rocks from ocean ...

To understand the mantle—the largest layer of Earth’s rocky body—scientists drill deep cores out of the Earth. Scientists drilled the deepest core yet and recovered serpentinized peridotite that forms ...

Scientists have found two new minerals that could trap huge amounts of water deep inside Earth, near the boundary between the mantle and the core.