First published at 07:01 UTC on May 10th, 2024.
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The regolith on the Moon covers almost the entire lunar surface, with only bedrock protruding on very steep-sided crater walls and occasional lava channels. This layer of regolith has formed …
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The regolith on the Moon covers almost the entire lunar surface, with only bedrock protruding on very steep-sided crater walls and occasional lava channels. This layer of regolith has formed over billions of years from various sources like the impact of meteoroids, micrometeoroid bombardment, and solar and galactic charged particles breaking down surface rocks. The regolith is generally several meters thick in different regions of the Moon, with a denser layer of fractured bedrock beneath it known as the “megaregolith.”
The term “lunar soil” is often used interchangeably with “lunar regolith,” referring to the finer fraction of regolith composed of smaller grains. The regolith consists of debris blasted out of lunar craters by meteor impacts that created them. The presence of regolith obscures the true nature of the Moon’s underlying surface, making it challenging to directly observe or access the bedrock without specialized equipment or missions.
In summary, while the regolith covers and conceals much of the Moon’s actual surface, underneath this layer lies the bedrock and geological features that constitute the Moon’s true terrain.
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