Earth's outer core is a fluid layer about 2,260 km (1,400 mi) thick, composed of mostly iron and nickel that lies above Earth's solid inner core and below...

liquid outer core whose flow generates the Earth's magnetic field, and a solid inner core. Scientific understanding of the internal structure of Earth is...

Earth's inner core is the innermost geologic layer of the planet Earth. It is primarily a solid ball with a radius of about 1,230 km (760 mi), which is...

The core–mantle boundary (CMB) of Earth lies between the planet's silicate mantle and its liquid iron–nickel outer core, at a depth of 2,891 km (1,796 mi)...

explanation of the Earth's magnetism, proposed that this magnetic field resulted from electric currents induced in the fluid outer core of the Earth. He revealed...

to increase with depth through Earth's crust and mantle, but drops sharply going from the mantle to Earth's outer core. Earthquakes create distinct types...

Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from Earth's interior out into space, where it interacts...

duration of the Earth's rotation and lunar month in the past, that suggests the possibility that Earth's Moon was much closer to Earth during the early...

Today Earth's outer core is a liquid layer about 2,260 km (1,400 mi) thick, composed mostly of molten iron and molten nickel that lies above Earth's solid...

variations in the flow of molten iron in Earth's outer core, resulting in changes in the orientation of Earth's magnetic field, and hence the position of...

on which they lie does not pass through Earth's center. Owing to the motion of fluid in the Earth's outer core, the actual magnetic poles are constantly...

the Earth's mantle Hf/W ratio places Earth's core as having segregated within 25 million years. Several factors control segregation of a metal core including...

mixture of molten iron and nickel in Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo...

Planetary core, the center of a planet Earth's inner core Earth's outer core Stellar core, the region of a star where nuclear fusion takes place Solar core Core...

Earth's magnetic north pole. The north magnetic pole moves over time according to magnetic changes and flux lobe elongation in the Earth's outer core...

Earth's Solid Inner Core". The New York Times. Retrieved 2 May 2025. Souriau, A.; Calvet, M. (2015). "1.23 - Deep Earth Structure: The Earth's Cores"...

minerals, and also exists in the Earth's outer core in solution with iron, and may also be present in the inner core. Carbon can form a huge variety stable...

water. Almost all of Earth's water is contained in its global ocean, covering 70.8% of Earth's crust. The remaining 29.2% of Earth's crust is land, most...

Earth's mantle is a layer of silicate rock between the crust and the outer core. It has a mass of 4.01×1024 kg (8.84×1024 lb) and makes up 67% of the...

Earth's outer core generates a magnetic field that fluctuates very little over the lifespan of many species, but will vary distinctly across Earth's surface...

At the Earth's Core is a 1914 fantasy novel by American writer Edgar Rice Burroughs, the first in his series about the fictional "hollow earth" land of...

Electromagnetic waves occur in the ionosphere and magnetosphere as well as in Earth's outer core. Dawn chorus is believed to be caused by high-energy electrons that...

study the Earth's magnetic field. High-precision and high-resolution measurements of the strength, direction and variations of the Earth's magnetic field...

thorium, and potassium-40 in Earth's mantle is thought to be the main source of heat that keeps the Earth's outer core in the liquid state and drives...

Tarzan at the Earth's Core is a novel by American writer Edgar Rice Burroughs, serialized in September 1929 to March 1930, the thirteenth in his series...

characteristics of the Earth Figure of the Earth Structure of the Earth Earth's crust Earth's mantle Earth's outer core Earth's inner core Earth's magnetic field...

and uranium on the equatorial plane and at the boundary between the Earth's outer core and mantle. If the concentrations of these radioactive elements were...

due to changes in the mass distribution or angular momentum of the Earth's outer core, atmosphere, oceans, or crust (from earthquakes), for a long time...

and reveal information about the Earth's rigidity and internal composition, including the discovery of the outer core's liquid state since they cannot pass...

The Moon is Earth's only natural satellite. It orbits around Earth at an average distance of 384399 km (238,854 mi; about 30 times Earth's diameter). The...