Please see these web pages:
Probably, we will want separate articles, "cosmology (physics)" (if 'cosmology' is indeed the usual, most technical, hip, and up-to-date term for the study of the origins of the universe) and "cosmology (religion and philosophy)."
--Larry
Does someone have one of those dictionaries where the date of the first use of a word is recorded? If the first one to use that word was an astronomer or physicist, I would consider it licit to reserve that word for that purpose...another word should exist that applies to the millenia of thinking. If, on the other hand, cosmology is an old word, probably brought long ago from latin and used in other contexts, I'll agree with Larry.
Checking Webster - the first recorded date in English is 1656, coming over from New Latin (i.e. Late Medieval or Early Modern), so it is somewhat difficult to call. It conveniently enough lists both definitions (osmogony refers to a theory of creation rather than of creation and development, so I was very wrong there). A quick search shows that scientists tend to restrict the term to scientific stuff (although still including things like Neptunism) while people dealing with religion and mythology don't mind using the term either way. What a mess.
Maybe there should be headings: "physical cosmology", "philosophical cosmology", etc.? Right now "dark matter" is next to "creationism"... -- S. Winitzki