Geology

Geology

The science that comprises the study of the solid Earth and the processes by which it is shaped and changed.

Industry: Earth science

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Geology

Channels

Earth science; Geology

Lava channels extending from hundreds to thousands of kilometres in length are conspicuous on the Venusian plains. Simple channels typically show little or no branching. They include long sinuous ...

Comets

Earth science; Geology

Small, icy bodies that revolve around the sun, usually with long periods, that are made up of a nucleus, coma and two tails- one composed of ions and the other composed of dust. Also, a small ...

Gian Domenico Cassini

Earth science; Geology

(1625-1712). An astronomer born in Italy, Cassini later became a naturalised French citizen. He discovered four of Saturn's satellites and observed a dark division in Saturn's ring (the Cassini ...

On July 7, 1992, Comet Shoemaker-Levy 9 made a close approach to Jupiter and broke apart into 21 pieces due to tidal forces inside Jupiter's Roche limit. On the subsequent pass, each of the pieces of ...

Continental crust

Earth science; Geology

The part of the crust that directly underlies the continents and continental shelves. Averages about 35 km in thickness, but may be over 70 km thick under largest mountain ranges.

Cassini division

Earth science; Geology

A space observed between the A and B segments of Saturn's rings. The gap is believed to have been created by the gravitational pull from Mimas, one of Saturn's moons.