Home›Browse›Orbiting Astronomical Observatory🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsTürkçeРусскийالعربيةไทย한국어中文日本語EntityQ1086325· pop 22· linked from 303 articlesOrbiting Astronomical ObservatorySign in to saveAlso known as OAOseries of four space observatories launched between 1966 and 1972Available in 21 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBahasa IndonesiaGalicianHebrewHungarianIgboPolskiSerbianTürkçeUkrainianShow 2 moreไทย한국어via Wikidata sitelinks · CC0