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hermiz hermiz
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6 years ago
Who started launching liquid-filled rockets in the United States in 1926?
A) Robert Goddard
B) Konstantin Tsiolkovsky
C) Hermann Oberth
D) Wernher von Braun
Textbook 
Life in the Universe

Life in the Universe


Edition: 4th
Authors:
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1 Reply
Life in the Universe, 4/E (Bennett, Shostak)
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19Clyde19Clyde
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6 years ago
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hermiz Author
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6 years ago
Smart ... Thanks!
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Yesterday
Thank you, thank you, thank you!
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2 hours ago
this is exactly what I needed
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