What ancient objection to a moving Earth remained unproven until the 19th century?

Answer

Measurable stellar parallax.

The primary reason ancient models persisted was the inability to detect stellar parallax—the apparent shift in nearby stars as the Earth moves in its orbit—due to the immense distances involved.

What ancient objection to a moving Earth remained unproven until the 19th century?

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How We Figured Out That Earth Goes Around the Sun - YouTube

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