How did Galileo’s observation of sunspots contribute to the erosion of the ancient worldview?

Answer

By tracking their movement, he demonstrated that the Sun was rotating on an axis, implying celestial bodies were changeable

The observation and tracking of sunspots proved that the Sun was not a perfect, unchanging entity but was subject to motion and change, thus eroding the philosophical division between a perfect heaven and a corruptible Earth.

How did Galileo’s observation of sunspots contribute to the erosion of the ancient worldview?

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Galileo's Revolutionary Observation - YouTube

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