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26 juill. 1963 - First Geosynchronous satellite, Syncom 2 by NASA

Description:

Syncom 2 was the first satellite to match the orbital period of earth, returning to the same spot in the sky every sidereal day

Ajouté au bande de temps:

Date:

26 juill. 1963
Maintenaint
~ Il y a 62 ans