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12 ore 55 min, 31 gen 1958 anni - First US satellite, detection of Van Allen radiation belts

Aggiunto al nastro di tempo:

Mikayla Holt - Enrichment

ByMIKAYLA HOLT
26 gen 2018

Data:

12 ore 55 min, 31 gen 1958 anni
Adesso
~ 66 years ago
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