🌐EnglishEnglishEspañolFrançaisItalianoPortuguêsРусскийEntityQ51579· pop 8· linked from 192 articlesKosmos 257Also known as DS-P1-Yu No.17Soviet military satelliteAvailable in 8 languagesEspañolPortuguêsGalicianHungarianMacedonianSerbianSerbian (Latin)via Wikidata sitelinks · CC0ConnectionsSECOREntityEnvironmental Research SatelliteEntityCategoriesDnepropetrovsk Sputnik programKosmos satellitesSpacecraft launched in 1968