Why were Galileo's discoveries a challenge to the church?

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Galileo's discoveries challenged the church on multiple levels. Firstly, they undermined the church's authority as the sole source of knowledge and truth. Secondly, his discoveries contradicted the plain interpretation of scripture which stated that the earth was the center of the universe. Lastly, Galileo's discoveries implied that our senses were not sufficient to know the world, meaning that there was a need for further investigation and experimentation.

Why Were Galileo's Discoveries a Challenge to the Church