Explore: Earth Planetary Structure

traditional Earth-based geology. Planetary geology includes such topics as determining the properties and processes of the internal structure of the terrestrial

of impact structures (including impact craters) on Earth contains the majority of the 194+ confirmed impact structures given in the Earth Impact Database

seismology, mineral physics, and planetary dynamics. In 1797, Henry Cavendish calculated the average density of the Earth to be 5.48 times the density of

The Vredefort impact structure is one of the largest impact structures on Earth. The crater, which has since been eroded away, has been estimated at 170–300

The internal structure of Earth is the layers of the Earth, excluding its atmosphere and hydrosphere. The structure consists of an outer silicate solid

Planetary science (or more rarely, planetology) is the scientific study of planets (including Earth), celestial bodies (such as moons, asteroids, comets)

An impact structure is a generally circular or craterlike geologic structure of deformed bedrock or sediment produced by impact on a planetary surface,

sciences, and is arguably a special case in planetary science, the Earth being the only known life-bearing planet. Earth science is a branch of the physical sciences

interior dynamo. In the space environment close to a planetary body with a dipole magnetic field such as Earth, the field lines resemble a simple magnetic dipole

(including Earth), half of the giant planets, specifically ice giants, a number of asteroids, and some planetary moons have mantles. The Earth's mantle is