Why were the discoveries of astronomer like galileo seen as radical and a threat to the church authority? what was the new idea that they proposed?

They were seen as a threat because they went against the teachings of the Church. The new idea was that the Earth revolved around the sun instead of the sun and the whole universe revolving around the Earth

i believe it d) heterogeneous

it for the workers lik if you have a job thats what its for

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