A tiny diamond from Brazil has provided scientists with remarkable new evidence that water may travel much deeper into Earth’s interior than previously thought. Hidden inside the small gemstone, ...

For decades, geophysicists have known that something unusual happens nearly 2,900 kilometres beneath our feet. Seismic waves from earthquakes suddenly speed up in a thin zone just above Earth’s core.

For many years, scientists have been fascinated by two massive, mysterious structures that lie deep within our planet. These unusual formations are located so far beneath the surface and behave in ...

Scientists may finally be closing in on the origins of two colossal, mysterious structures buried nearly 1,800 miles inside Earth—hidden formations that have puzzled researchers for decades. New ...