Our planet has been asteroid-smashed, melted and eroded, enough that most of its original armor has been long buried. Except ...

These results suggest the existence of a process recycling marine carbon into Earth's mantle, which could contribute to ...

Scientists found new evidence that Earth’s crust is peeling underneath the Sierra Nevada in California. The process might be how the continents formed, they say.

This layer also contains Earth’s oceanic crust — a thinner and denser layer below the oceans — and the continental crust that sits above this layer.

Deep beneath Earth’s surface, researchers have discovered an ancient seafloor buried for millions of years. This unexpected ...

Comparisons between seismic datasets representing different depths between the Sierra Nevada confirmed a vast shear zone under the southern and central areas at depths close to the mantle boundary.

Giant creatures evolve beneath the ocean's surface. Their discovery changes our perception of underwater life. At depths of over 8,200 feet (2,500 meters), scientists have uncovered a universe teeming ...

In 1970, Russian geologists drilled a nine-inch wide hole into the Kola Peninsula’s Baltic Shield — a part of Earth’s crust with rock well over a billion years old — and began digging as deep as they ...

Beneath the crust lies the mantle. This layer makes up about 84% of the Earth’s volume. The mantle extends to a depth of about 1800 miles. It is rich in silicates and oxides and is divided into two ...

An international research team has discovered that a subduction zone’s age affects the ability for it to recycle water between the Earth’s surface and its inner layers. The more mature the ...