ITT: people repeating incorrect pop-history.

Copernicus was a well-regarded astronomer in his time, a minor clergy member (a canon), published his book with Church permission and dedicated it to the Pope.

Galileo is a bit more complex: he was originally left to do whatever he bloody well liked with his theories, until he started trying to perform his own theology, which the Church wasn't cool with. The Pope interceded on his behalf, told him to just stick to the science, and in response Galileo wrote him into his book as "Simplicio", literally calling him a dumbass in public. Something he actually did for several other of his powerful political allies.

So basically, act like an arrogant dickwad with zero political common sense in the cutthroat world of 17th century Italian politics, and you might just get placed under house arrest for the rest of your life.