China is set to venture where humanity has scarcely been before: beneath the Earth's crust, into its mantle. To achieve this ...

Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds.

Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds.

These results suggest that similar reactions between helium and iron may have occurred within Earth’s core shortly after its formation, trapping much of the primordial helium-3 in the material that ...

Deep within Earth’s mantle lie two enormous, continent-sized structures known as LLVPs. Scientists once believed these ...

Surprising differences in the two so-called Large Low-Velocity Provinces may risk instability in Earth's protective magnetic ...

The first layer is the crust, a thin outer shell that extends ... Earth's innermost layer is called the core. The outside of Earth's core is made from molten nickel and iron that can reach ...

Where the Earth’s core meets the mantle ... and geologists now think they are composed of relatively dense oceanic crust which broke off the rest of its plate and was forced through the mantle.

Primordial helium from the beginning of the solar system may be stuck inside Earth's solid core, new research suggests ... out of mid-ocean ridges where the crust is pulling apart and out of ...

Earth’s core could contain helium from the early solar system. The noble gas tucks into gaps in iron crystals under high pressure and temperature.

Tectonic plates move, causing strain energy to build up, and that energy eventually releases in the form of an earthquake. As ...

Researchers have focused in recent times on a possible correlation between the sun or moon and seismic activity on Earth.