Galileo's telescopic discovery of mountains on the Moon were controversial because it suggested something about the Moon. What was it?
A) that it is older than the Earth
B) that it is not a perfect sphere
C) that it was inhabited
D) that it orbits the Earth

Question

Quizplus · Accepted Answer

Galileo's discovery of mountains on the Moon was controversial because it challenged the prevailing Aristotelian belief in the perfection of celestial bodies, suggesting instead that the Moon, like Earth, had irregular, imperfect surfaces, not a perfect sphere.

Galileo's Telescopic Discovery of Mountains on the Moon Were Controversial