Multiple Choice
Which early telescope observation probably convinced Galileo that the Copernican heliocentric model provided a better explanation for the solar system than the Greek geocentric model?
A) the observation of sunspots on the Sun and the detection of solar rotation
B) the observation of moons orbiting another planet, Jupiter, rather than Earth
C) the change in apparent angular size of the Moon as it orbits Earth
D) the change with time in the angular size of Mars
Correct Answer:

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Correct Answer:
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