Science glossary film: Crater Glossary Video

Crater Glossary Video

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A bowl-shaped depression, usually circular, in the surface of a planet or moon.

A bowl-shaped depression, usually circular, in the surface of a planet or moon. The craters of the Moon, like many of those on Earth, were created by meteorite impacts, which leave a distinctive crater rim along with telltale ejected matter. Craters can also be formed by explosive volcanic eruptions. Or sometimes by subsidence, for example, after underground nuclear test explosions.

The craters of the Moon, like many of those on Earth, were created by meteorite impacts, which leave a distinctive crater rim along with telltale ejected matter. Craters can also be formed by explosive volcanic eruptions. Or sometimes by subsidence, for example, after underground nuclear test explosions.

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