61.The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957.

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artificial
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satellite
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sputnik
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sovietunion
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space
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orbit
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launch
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rocket
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aerospace
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explorer
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cosmonaut
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outerspace
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interstellar
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universe
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astronomy
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telescope
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radiotransmission
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gravity
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microgravity
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zerogravity
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weightlessness
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spacecraft
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missioncontrol
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spacestation
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astronaut
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extravehicular
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maneuvering
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solarpanel
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earth