Saturn has 128 new moons – more than the rest of the planets combined

Saturn has dozens of new moons, bringing it to a total of 274. All of the new moons are between 2 and 4 kilometres wide, but at what point is a rock too small to be a moon?

https://www.newscientist.com/article/2471071-saturn-has-128-new-moons-more-than-the-rest-of-the-planets-combined/

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