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12 ч 55 мин, 31 янв 1958 г. - First US satellite, detection of Van Allen radiation belts
Добавлено на ленту времени:
Mikayla Holt - Enrichment
By
MIKAYLA HOLT
26 янв 2018
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0
316
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12 ч 55 мин, 31 янв 1958 г.
Сейчас
~ 66 г назад
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