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Earth science

Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.

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Earth science > Geology

glass beads

Earth science; Geology

Small, rounded pieces of silicate glass, thought to have become airborne during terrestrial impact events, also, tektites.

global escarpment

Earth science; Geology

A long, more or less continuous cliff or relatively steep slope of global proportions, facing in one general direction, separating two level or gently sloping surfaces, and ...

globular cluster

Earth science; Geology

A spherical group of up to hundreds of thousands of stars, found in the halo at the margin of galaxies.

Golubkina

Earth science; Geology

A 30.1 kilometer (19 mile) diameter crater on Venus characterized by terraced inner walls and a central peak, typical of large impact craters on the Earth, the Moon and Mars. The ...

gravitational potential energy

Earth science; Geology

Stored energy in a system resulting from the force of gravity.

Great Red Spot

Earth science; Geology

A complex storm moving in a counter-clockwise direction on Jupiter. At the outer edge, material appears to rotate in four to six days; near the center, motions are small and ...

ground ice

Earth science; Geology

Wedge-shaped, foliated ice produced in permafrost, occurring as a vertical or inclined sheet, dike or vein tapering downward, and measuring form a few mm to as much as 6 meters ...