Within the span of about a month to the yr, some of these chunks came collectively, attracted to one another’s gravity, and fashioned the Moon. Big-effect hypothesis. In Wikipedia. By NASA/JPL-Caltech, Community Area, Wikipedia Moons kind by way of several different processes, dependant upon the instances in their planetary units. https://bestmoons59371.blogdon.net/the-2-minute-rule-for-bestmoons-50795852