What was the primary philosophical model that Galileo's lunar observations destabilized?

Answer

The Aristotelian-Ptolemaic worldview

The established belief that the heavens were made of perfect, unchanging quintessence, distinct from corruptible Earth, was central to the Aristotelian-Ptolemaic worldview, which Galileo undermined.

What was the primary philosophical model that Galileo's lunar observations destabilized?

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Galileo's Revolutionary Observation - YouTube

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