Earth's inner core swings about 2.35 degrees over roughly 70 years, and its gravitational pull changes the length of a day by ...

Earth's rotation experiences slight variations in day length due to interactions within its inner core and mantle.

The length of Earth’s day drifts by a few milliseconds over decades, and a Nature paper from the University of Alberta argues ...

While fluctuations in day length were linked to the liquid outer core, new research identifies the solid inner core's ...

The Earth’s Inner Realm: Anything but Boring For generations, people wondered what was hidden deep underground. It wasn’t ...

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

Diagram of Earth's structure showing inner core, outer core, mantle and crust. A doughnut-shaped structure almost 3,000 kilometers beneath our feet has been discovered by scientists from the ...

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Earth’s inner core has both changed its relative rotation rate and deformed in the past few decades, according to an analysis of seismic waves recorded when the inner core occupied the same relative ...

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

This artist’s concept of the Earth’s core shows the inner core in red, the outer core in blue, and the donut in red. The donut region contains more light elements around the equator. Image via ...

Seismic data like the lines pictured on this 3D map help scientists understand the structure of the earth's core. This particular map helps scientists at Chesapeake Energy’s Oklahoma City headquarters ...