Church officials believed the theory contradicted current religious teachings
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Church officials believed the theory contradicted current religious teachings.
Galileo did not propose a heliocentric theory, he agreed with Copernicus and his heliocentric theory. The Catholic church, at the time, disagreed and they held a huge amount of power and put him on trial.
Galileo Galilei's theory of the solar system was largely based on the heliocentric model proposed by Copernicus, with the sun at the center instead of the Earth. Galileo's observations and use of the telescope provided evidence to support this model, ultimately leading to a better understanding of the structure of our solar system.
If you mean what scientist created the heliocentric theory, it was Nicolaus Copernicus. Based on astronomical observations, he determined that the Ptolemaic geocentric theory was incorrect, and replaced it with his own heliocentric theory, which placed the sun at the center of the universe, and had planets orbiting the sun.
The heliocentric theory, proposed by Nicolaus Copernicus, states that the Earth and other planets revolve around the Sun, contrary to the previously accepted geocentric model.