Gold isn’t as rare as you may think—it’s just hard to reach. 99.999 percent of Earth’s precious metals lay hundreds of miles beneath the surface, trapped inside the planet’s molten core.

These ancient cores may contain clues about an unexplained change in Earth’s glacial-interglacial cycles, and could shed ...

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

This summer a few factors are adding up to make a handful of Earth’s spins—those occurring on July 10, July 22 and August 5—more than a millisecond faster than the average of the past several decades.

While ¹⁰⁰Ru does exist in Earth’s mantle, it’s slightly more abundant inside of the core —alongside 99.999 percent of the planet’s gold and other precious metals.

But what is revealed deep inside the Earth surprises laymen and scientists alike: Almost 3000 kilometers below the Earth's surface, solid rock is flowing that is neither liquid, like lava, nor ...

Earth's largest gold reserves are not kept inside Fort Knox, the United States Bullion Depository. In fact, they are hidden much deeper in the ground than one would expect. More than 99.999% of ...

Scientists have theorized that perhaps this primordial helium is locked up in Earth's core, where it would remain safe from major disturbances and leak out to the surface only very slowly. But the ...

Seismic imaging has exposed two massive zones hidden deep in Earth’s mantle. These giant blobs, known as large low-velocity provinces, or LLVPs, stretch beneath Africa and the Pacific.

Gold isn’t as rare as you may think—it’s just hard to reach. 99.999 percent of Earth’s precious metals lay hundreds of miles beneath the surface, trapped inside the planet’s molten core.

Gold isn’t as rare as you may think—it’s just hard to reach. 99.999 percent of Earth’s precious metals lay hundreds of miles beneath the surface, trapped inside the planet’s molten core.