Ultimate authority in religion is based on some ancient writings deemed to be a revelation from God, or the words of some great teacher, or the opinions of some person deemed to be a guru or God's vice-regent on Earth, or to have some other position which raises them beyond question. There is no supreme authority in science. Science is an open self-critical system in which all theories and paradigms are subject to review. Science seeks consensus through the quest for that description which is true for all possible observers. Religion proclaims the eternal truth and defends that truth through the oppression of unbelievers, the persecution of heretics, crusades, and jihads.
Science is universal and consensual.
Religion is divisive, and divided with quarrels and ever proliferating sects, and sub-sects. This does not mean that theologians are inherently nastier than scientists. It is just that they are trapped into a system of thought with these appalling consequences. Yet the theologians are trying to witness to a supreme insight which science systematically ignores. The elimination of the personal equation is a basic essential of correct scientific procedure.