Key Takeaways on Earth's Inner Core Earth's inner core is solid and blistering hot. For decades, scientists have known the inner core is solid thanks to the pioneering work of Danish ...

It may seem fantastical to say there is a planet within Earth, but conceptually it is true. Ever since the 1990s, geophysicists have known that Earth's inner core— a ball of iron with a radius ...

Literature and lore involving Earth's core have filled the knowledge void with all sorts of fanciful ideas. "I'm not such a philosopher but we've all had nightmares of what's going on down in the ...

Ample sunshine, ice cream, and afternoons at the beach might leave you wishing that summer would never end. Unfortunately, ...

In the mid-1990s scientists found evidence that Earth’s inner core, a superheated ball of iron slightly smaller than the moon, was spinning at its own pace, just a bit faster than the rest of ...

Earth's core is an estimated 5,000 degrees Celsius. iStock. Subduction, the term used for rocks from Earth's surface descending into the mantle, takes oxygen-rich material from the surface into ...

Scientists break down the reasons why days are getting shorter—and the mystery they're still trying to solve about Earth's ...

The 2003 disaster film “The Core” imagines that the rotation of Earth’s center has stalled, damaging the magnetic field that envelops the planet — and triggering a violent lightning storm ...

The Earth’s inner core is separated from the rest of the planet by its liquid outer core, so it rotates at a different pace and direction.

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 ...

Even more intriguing, though, is that this new study claims that the Earth’s inner core has halted its spin relative to the mantle. To discover this, the researchers look at earthquakes between ...

As Earth's core gradually cools, it crystallizes from the inside out. This crystallization process releases energy that can further power the movement of the still-liquid outer core.