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From the article: Cosmology (from Greek κόσμος, kosmos "world" and -λογία, -logia "study of") is a branch of astronomy concerned with the studies of the origin and evolution of the universe, from the Big Bang to today and on into the future. It is the scientific study of the origin, evolution, and eventual fate of the universe.
I think this definition is too narrow. Cosmology refers to *any* theory of the Universe, including religious narratives and metaphysical ideas. This definition implies that cosmology is astronomy, and that is not historically true. Rendall (talk) 23:18, 5 June 2021 (UTC)[reply]
I agree. It's a metaphysical field of philosophy that happens to include astronomy. Even in astronomy, there are speculative aspects that appear untestable, and thus are philosophical in nature. Praemonitus (talk) 21:52, 20 January 2022 (UTC)[reply]