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31 янв 1958 г. - Confirmed the existence of the Van Allen belts

Описание:

Explorer 1 confirmed the existance of van Allen bealts

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Our Space on earth

ByImogen SHAND-F

2 дек 2018

1

0

347

Дата:

31 янв 1958 г.

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~ 67 г назад

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