https://economictimes.indiatimes.com/news/international/us/scientists-puzzled-why-this-dwarf-planet-has-ring-not-moon-see-details/articleshow/97782175.cms
Scientists are puzzled by recent observations of a distant planet in our solar system, Quaoar, which has a dense ring surrounding it instead of a moon. The conventional wisdom holds that all the matter composing the ring should have condensed to form a moon, …
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