The RCC changed it's teaching...

TyroneIrish 25755 posts Joined:
Posted
...from the attached Wiki summary of Galileo Galilei...
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Galileo's championing of Copernican heliocentrism was met with opposition from within the Catholic Church and from some astronomers. The matter was investigated by the Roman Inquisition in 1615, which concluded that heliocentrism was foolish, absurd, and heretical since it contradicted the Ptolemaic system.[9][10][11]

Galileo later defended his views in Dialogue Concerning the Two Chief World Systems (1632), which appeared to attack Pope Urban VIII and thus alienated both the Pope and the Jesuits, who had both supported Galileo up until this point.[9] He was tried by the Inquisition, found "vehemently suspect of heresy", and forced to recant. He spent the rest of his life under house arrest.[12][13] During this time, he wrote Two New Sciences (1638), primarily concerning kinematics and the strength of materials, summarizing work he had done around forty years earlier.[14]

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The opposition to Galileo was at least as vehement as that being hurled at Pope Francis today...but well reasoned changes in teaching are still possible. Knowledge will ultimately win out over ignorance.

Link: https://en.wikipedia.org/wiki/Galileo_Galilei

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