The First Artificial Satellite To Enter Earth S Orbit

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Sputnik 1 The First Artificial Satellite Successfully Positioned In Scientific Diagram

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An Artificial Satellite Is Moving In A Circular Orbit Of Radius 42250 Km Calculate Its Sd If It Takes 24 Hours To Revolve Around The Earth

Sputnik The First Artificial Satellite Was Launched Into Orbit This Day In E 4 Oct 1957

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