🌐EnglishEnglishEspañolFrançaisItalianoPortuguêsTiếng ViệtРусскийفارسی中文EntityQ3406262· pop 11· linked from 95 articlesDwarf galaxy problemthe fact that the number of observed dwarf galaxies is orders of magnitude lower than expected from numerical cosmological simulationsAvailable in 11 languagesEspañolFrançais中文РусскийPortuguêsItalianoCatalanCzechUkrainianConnectionsuniverseEntityMilky WayEntityCategoriesDark matterGalaxiesLarge-scale structure of the cosmosUnsolved problems in physics