Oh, there is controversy...even among evolutionists, there is not agreement: do you still read scientific material very often?
The so called evolution controversy is a phenomenon caused by the incompatiblity between science and religion. Within science there is no controversy. That’s why evolution is referred to as a theory. A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not “guesses” but reliable accounts of the real world. Take, for instance, the theory of gravity. Wikipedia can give you all of this.