🌐EnglishEnglishРусский中文EntityQ5275413· pop 5· linked from 5 articlesDiffuse extragalactic background radiationPhoton field that fills our universeAvailable in 5 languages中文РусскийBelarusianUkrainianvia Wikidata sitelinks · CC0ConnectionsastrophysicsEntitydigital object identifierEntityCategoriesCosmic background radiationCosmic raysExtragalactic astronomyUnsolved problems in astronomy