How did the appearance of the Milky Way stars observed by Galileo contrast with his observation of Jupiter's moons through the same instrument?
Answer
The Milky Way stars appeared static due to immense distance, unlike the rapidly moving Jupiter moons.
The moons of Jupiter showed clear, rapid motion, whereas the stars of the Milky Way were so distant that their individual motions were impossible to detect with the technology of the time, forcing them to be accepted as static objects.
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