Earth may have at least 6 'minimoons' at any given time. Where do they come from?

New research suggests that up to six small fragments of the moon may briefly orbit Earth as "minimoons" before returning to solar orbit. These lunar pieces, typically smaller than 6.5 feet in diameter, are challenging to detect due to their size and speed. The discovery of two likely lunar minimoons has prompted scientists to investigate their prevalence and potential scientific and commercial applications.