What did the discovery of Jupiter's four largest moons (Medicean Stars) immediately suggest about the structure of the cosmos?

Answer

That not everything in the heavens revolved around the Earth.

The observation of moons orbiting Jupiter established a miniature solar system in action, providing a crucial analogue suggesting the Earth did not have to be the unmoving center of all motion.

What did the discovery of Jupiter's four largest moons (Medicean Stars) immediately suggest about the structure of the cosmos?
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