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Public Timelines
FAQ

oct 4, 1957 - Communication Satellite

Description:

is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth.

Added to timeline:

14 Dec 2019
0
0
517

Date:

oct 4, 1957
Now
~ 68 years ago

Images: