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lunar features click to hear : lunar features

Aspect of the Moon determined by past volcanic activity, meteorite impact and soil fractures.
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cliff bay ocean crater wall mountain range sea lake highland crater ray cirque

cliff click to hear : cliff

Steep rock face shaped by a sea.

bay click to hear : bay

Small plain of hardened lava located along the edges of a sea.

ocean click to hear : ocean

A very large sea.

crater click to hear : crater

Circular basin dug out by the impact of a meteorite.

wall click to hear : wall

Mountain usually surrounding a cirque.

mountain range click to hear : mountain range

Vestiges of the walls of a once-large crater; semicircular in shape, it can span hundreds of kilometers.

sea click to hear : sea

Designates the vast plains of hardened lava forming the dark regions; younger than the highlands, these cover 15% of the surface.

lake click to hear : lake

Small isolated plain of hardened lava.

highland click to hear : highland

Designates bright regions riddled with craters; these oldest regions cover 85% of the surface.

crater ray click to hear : crater ray

Band that radiates from a young crater, the result of matter ejected during a meteorite impact.

cirque click to hear : cirque

Vast crater characterized by remarkable relief; varies between 20 and 200 km in diameter.