The impact of Copernicus's descovery?
Copernicus knew that his theory would be controversial so he had it published after he was dead. The book started out as kind of a secret only for those people serious enough to read that sort of stuff. Then people started making it more and more publish until it came to the attention of the church. Bruno got himself burned at the stake over it, Galileo got himself publically censored and under house arrest for the rest of his life. After Galileo it remained controversial but the opinions were constantly going against the church. In the mid 1970's the Catholic church finally retracted its defiance.