The idea of a hollow Earth has fascinated people for centuries. Some have imagined a giant empty world beneath our feet, ...

The Earth is four and a half billion years old, so why they started appearing then is unknown, as is the mechanism to make ...

A surprising reversal in molten iron flow beneath the Pacific is giving scientists a sharper view of how Earth’s magnetic ...

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 ...

PCWorld reports that scientists discovered Earth’s inner core has slowed its rotation relative to the crust, even appearing to stop moving in a phenomenon that occurs every 35 years. This iron-nickel ...

Researchers at Göttingen University have uncovered new evidence that some of Earth's most precious metals began their journey far deeper than once thought. Working with volcanic rocks from ocean ...

All the activity on Earth’s surface — erupting volcanoes, shifting tectonic plates, restless seas and myriad forms of life — depends on the two-part engine under the hood. Directly beneath Earth’s ...

A huge region of molten iron deep beneath the Pacific Ocean suddenly changed direction around 2010. The discovery suggests ...

Add Yahoo as a preferred source to see more of our stories on Google. A representation of the underground imaging used in the study. (Edward Garnero and Mingming Li/Arizona State University) The ...