🌐한국어EnglishDeutschEspañolFrançaisNederlandsPolskiPortuguêsSvenskaРусскийالعربيةفارسیไทย한국어中文日本語EntityQ2078326· pop 14· linked from 32 articles편평도 문제Also known as oldness problem, Dicke paradox우주론에서의 난제Available in 14 languagesEspañolFrançaisDeutsch日本語РусскийPortuguêsالعربيةEstonianPolskiSerbianConnectionsFriedmann equationsEntityshape of the universeEntityCategoriesCosmic inflationPhysical cosmologyUnsolved problems in physics