Multiple Choice
The public debate about Martian canals was not resolved until
A) many scientists were unable to reproduce Percival Lowell's sketches of Martian canals
B) the governing body of astronomy, the International Astronomical Union made an official statement on the matter
C) the first spacecraft flew past Mars in 1965
D) the first spacecraft landed on Mars in 1976
Correct Answer:
Verified
Correct Answer:
Verified
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