🌐EnglishEnglishBahasa IndonesiaDeutschFrançaisItalianoNederlandsPolskiPortuguêsTiếng ViệtРусский中文日本語EntityQ550613· pop 20· linked from 166 articlesExplorer 3American military research satelliteWikidata factsImageExplorer 3 Flight Recorder.jpgSources (4)nssdc.gsfc.nasa.govwikidata.orgnssdc.gsfc.nasa.govru.wikipedia.orgvia Wikidata · CC0Available in 19 languagesFrançaisDeutsch日本語РусскийPortuguêsItalianoBahasa IndonesiaCzechFinnishGalicianHungarianConnectionsNOTS-EV-1 PilotEntityExplorers ProgramEntityCategories1958 in the United StatesExplorers ProgramSource attributionSpacecraft launched in 1958Spacecraft which reentered in 1958