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Which of the following is most responsible for the success of modern day space missions? invention of the telescope acceptance of heliocentric theory development of liquid propu…

Which of the following is most responsible for the success of modern day space missions? invention of the telescope acceptance of heliocentric theory development of liquid propu…
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Which of the following is most responsible for the success of modern day space missions?

invention of the telescope
acceptance of heliocentric theory
development of liquid propulsion systems
discovery of red shift by the Hubble Telescope

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User RasmusWL
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2 Answers

3 votes
The third one development of liquid propulsion systems
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User Aholt
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8.1k points
3 votes
C. development of a liquid propulsion system is the answer

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User Summer Jinyu Xia
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7.4k points
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