The scientist who was the first to devised experimental tests to demonstrate the validity of the heliocentric model of the solar system was Nicolaus Copernicus.
Nicolaus Copernicus can be regarded as the Renaissance polymath, , he can be described as the astronomer, and Catholic canon that brought about the discovery of model of the universe which placed the Sun rather than Earth at its center.
It should be noted that Nicolaus Copernicus propounded a comprehensive heliocentric theory which is a predictive capability to Ptolemy's geocentric system.
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