Trough
In space and astronautical engineering, a trough refers to a long, narrow depression or channel on the surface of a celestial body, such as a planet or moon. Troughs can be formed by a variety of geological processes, including tectonic activity, volcanic activity, and impact cratering. They can also be created by the movement of glaciers or other forms of erosion. Troughs are of particular interest to scientists studying the geology and history of celestial bodies, as they can provide clues about the processes that shaped their surfaces over time.
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