This undated illustration shows Earth's inner core. Scientists say that around 565 million years ago, the planet's solid inner core emerged, making life on Earth a possibility.

NPR's Ayesha Rascoe talks to John Vidale, professor of earth sciences at the University of Southern California, about new research suggesting the rotation of Earth's inner core may be slowing down.

LOS ANGELES — Scientists have just detected something unusual happening 3,000 miles beneath our feet.New research from an international study reveals that Earth’s inner core, a ball of mostly ...

The new research from the University of Southern California, now published in Nature, noticed that the Earth’s inner core was moving slower than the surface, termed “backtracking,” and has ...

USC scientists have made a groundbreaking discovery about the nature of Earth’s enigmatic inner core, revealing for the first time that this 1,500-mile-wide ball of iron and nickel is changing.

This isn't the first research to show this kind of oscillation for the rotation of Earth's core. In 1996, a paper by Song and Paul Richards showed the first observational evidence that the core ...

The spin of Earth’s inner core may have slowed, with the heart of the planet now rotating at a slightly more sluggish clip than the layers above, new research finds.The slowdown could change how ...

Earth’s core consists of a solid iron-nickel ball rotating within a layer of liquid metal. But that ball may not be as simple as it seems: new research suggests the inner core contains its own ...

It’s easy to look at Earth’s Inner core and imagine the texture of that solid iron ball as smooth and round. However, new research published this month in the journal Nature could prove ...

New research confirms that the Earth's core does in fact contain vast amounts of sulfur, estimated to be about 10 times the amount of sulfur in the rest of the Earth, ...

For much of the planet’s recent geological history, ice ages came and went every 41,000 years. Then, during a period ...