Earth's crust today has a surprisingly similar composition to the planet's first outer shell, or "protocrust," new research ...

Scientists have long thought that tectonic plates needed to dive beneath each other to create the chemical fingerprint we see ...

Earth’s rocky layers are mysteriously low in nitrogen compared with carbon and argon. A scientific team explored our planet’s ...

Researchers have made a new discovery that changes our understanding of Earth's early geological history, challenging beliefs ...

Located 3,000 miles below the Earth's surface, the inner core is anchored by gravity within the molten liquid outer core. Until now, the inner core was widely thought of as a solid sphere.

About 4.5 billion years ago ... generated by our planet's rotation and its iron-nickel core. This teardrop-shaped field shields Earth from high-energy particles launched at us from the sun ...

The Earth's interior is composed of four layers ... in diameter. Although this inner core is white hot, the pressure is so high the iron cannot melt. The iron isn't pure—scientists believe ...

Scientists have uncovered new information about the Earth's core: it may not be completely solid. Instead, its center may be more malleable than expected and has changed shape in recent years.

We all grew up learning that we live on the Earth’s crust, which is just a thin layer above the mantle. Beneath that, the outer core surrounds the inner core, and… well, that’s it ...

“Unlike helium-4, which is produced through radioactivity ... The mantle is the region between Earth’s core and crust. The fact that the isotope can still be found in rock and magma suggests that it ...

Its loss from magma suggests that the planet has a deep reservoir of primordial helium, and the new compounds suggest that Earth’s iron-rich core could hold some of that helium. But the team ...

but since our planet was formed around 4.6 billion years ago, the length of a day has been gradually growing. A day is the time period of a full rotation of the Earth with respect to the Sun.