Diagram of Earth's structure showing inner core, outer core, mantle and crust. A doughnut-shaped structure almost 3,000 kilometers beneath our feet has been discovered by scientists from the ...

A new study offers an explanation for unusual chemical signatures found in some volcanic rocks.

Add Yahoo as a preferred source to see more of our stories on Google. While most of us take the ground beneath our feet for granted, written within its complex layers, like the pages of a book, is ...

The highest-resolution map yet of the underlying geology beneath Earth's Southern Hemisphere revealed something we had never known before: an ancient ocean floor that may wrap around the core. This ...

This article predates Brown Brothers Media’s ownership of Science Blog and has not been reviewed under our current editorial process. It is preserved as part of the publication’s archive. Researchers ...

For decades, Antarctica has been treated as a kind of frozen time capsule, a place where evidence of Earth's deep past sits preserved, undisturbed, beneath layers of ice that have built up over ...

About 1,800 miles beneath the surface, Earth’s internal structure changes abruptly where the solid rock of the mantle meets the swirling molten iron of the outer core. But the boundary between the ...

An international research team may have found an explanation for seismic anomalies, the noticeable deviations in the behavior of earthquake waves, in Earth's inner core. A team led by scientists from ...