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dec 11, 1971 - Ariel 4-BRITISH IONOSHPERIC RESEARCH SATELLITE

Description:

It was a small observatory designed to investigate the interactions between electromagnetic waves, plasmas, and energetic particles present in the upper ionosphere.

Added to timeline:

Early History of satellites

ByCamila Alvarez
29 Nov 2018
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Date:

dec 11, 1971
Now
~ 53 years ago
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