ETH Zurich scientists confirmed that solid rock flows deep inside Earth, solving a decades-old mystery about seismic waves.

Speaking of precious caches, most of Earth’s gold lies trapped in the planet’s seething, molten core. But a new analysis of volcanic rocks in Hawaii suggests gold and other precious metals ...

Gold and other precious metals are leaking from Earth's core into the layers above, eventually making their way up to the surface during the formation of volcanic islands like Hawaii, a new study ...

Editor’s note: A version of this story appeared in CNN’s Wonder Theory science newsletter. To get it in your inbox, sign up for free here. For a long time, there has been a missing puzzle ...

Speaking of precious caches, most of Earth’s gold lies trapped in the planet’s seething, molten core. But a new analysis of volcanic rocks in Hawaii suggests gold and other precious metals such as ...

(CNN) — For a long time, there has been a missing puzzle piece in Jerusalem’s history. Though ancient texts offered some clues, an archaeological record of the city during the Early ...