Respuesta :

Because it challenged their belief and religion I think

Answer:They felt threatened by Galileos support heliocentric theory because of their belived in their religion more than logic resoning.

Explanation:

Church leaders felt threatened because the idea that Earth was the center of the universe was part of the belief system approved by the Church aswell  Because it went against what was written in the bible which was that Earth was the center of the universe.

hope this helps.