SciHi auf Twitter: "Map with radio telescopes around the world, for the birthday of radio astronomy pioneer Grote Reber, born #OTD on Dec 22, 1911, via #Wikidata https://t.co/5glkU0lfhI https://t.co/lDN3WBTRrT #astronomy… https://t.co/5q3QRt18Zf"

https://twitter.com/SciHiBlog/status/944107429041762305

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