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15 sett 1957 anni - Ensimmäinen havainto Van Allenin vyöhykkeestä, Ensimmäinen aurinkoenergialla toimiva satelliitti ja Ensimmäinen tietoliikennesatelliitti - USA

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ByPaolo Liberal
12 gen 2018

Data:

15 sett 1957 anni
Adesso
~ 66 years ago
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