Nobody knew what they are, and whether they are only a temporary phenomenon, or if they have been sitting there for millions ...

Research on hidden structures deep within Earth’s mantle challenges theories about our planet’s middle layer and could ...

We are unsure of the nature of the strange doughnut-shaped structure discovered inside the Earth's core. We thought Earth had ...

Earth has a lot going on under the surface — even in what may have once seemed to be its most unassuming layer. The mantle, a zone between our planet’s thin crust and the molten core ...

Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds.

Scientists have discovered hidden treasures in the Earth's mantle. Hidden deep within Earth's mantle are two colossal ...

Scientists have discovered massive structures deep inside Earth, beneath Africa and the Pacific Ocean. These structures are ...

The two giant blobs — one beneath the Pacific Ocean and one beneath Africa — lie at the boundary between Earth's mantle and its outer core, some 1,900 miles (3,000 kilometers) beneath the surface.

Earth's biggest mountains, more than 100 times taller than Mount Everest, have been discovered on the boundary between Africa ...