Read the definitions below with reference to your comment.
Theory: a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena; "theories can incorporate facts and laws and tested hypotheses." Addendum: "Theories do not grow up to be laws. Theories explain laws." (Courtesy of VadeRetro.)
Fact: when an observation is confirmed repeatedly and by many independent and competent observers, it can become a fact
Religion: (theistic): "1 the belief in a superhuman controlling power, esp. in a personal God or gods entitled to obedience and worship. 2 the expression of this in worship. 3 a particular system of faith and worship." Non-Theistic: "The word religion has many definitions, all of which can embrace sacred lore and wisdom and knowledge of God or gods, souls and spirits. Religion deals with the spirit in relation to itself, the universe and other life. Essentially, religion is belief in spiritual beings. As it relates to the world, religion is a system of beliefs and practices by means of which a group of people struggles with the ultimate problems of human life."
Have someone else give an independant definition from his/her own thought processes. Can't be done: Communicative theory of reality. Define compentent observers. If you do, it is still being done with subjectivity.
So scientists think they have a monopoly on reality, but no, they don't. Just a very admirable and disciplined game of catagorizing things and figuring out some puzzles in a much grander scheme of things.