🌐EnglishEnglishBahasa IndonesiaEspañolFrançaisItalianoNederlandsРусскийالعربيةفارسیEntityQ49947· pop 11· linked from 342 articlesGamma observatoryAlso known as Gamma-ray observatory, Gammaformer Soviet gamma ray telescopeAvailable in 10 languagesEspañolFrançaisРусскийالعربيةArmenianBahasa IndonesiaGalicianUkrainianفارسیvia Wikidata sitelinks · CC0ConnectionsOrbiting Solar ObservatoryEntityelectronvoltEntityCategoriesFrance–Soviet Union relationsGamma-ray telescopesSoviet space observatoriesSpacecraft launched in 1990Space telescopes