Sputnik 1957 - history's first artificial signals from space

Sputnik 1957 - history's first artificial signals from space

European Space Agency

History changed on 4 October 1957, when the Soviet Union successfully launched Sputnik I. The world's first artificial satellite was about the size of a beach ball (58 cm across), weighed only 83.6 kg and took about 98 m…

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