There is a major difference between science and religion regarding how each arrives at the truth of reality. This post will not address what those differences are, as plenty has been said about such on this blog and elsewhere. This post will, instead, look at the question of who is correct from a little different angle than I have seen elsewhere.
There are over 4000 religion groups in the world, with Christianity being only one group. There are over 38,000 denominations of Christianity. Christianity started "officially" from one and "branched out" to what we have today, as disagreements increased.
Modern science began about 150 years ago. Since that time, scientific knowledge over any subject has begun with many hypotheses over the matter in question. Through the scientific method, the many ideas/hypotheses are whittled down to fewer and fewer until eventually (if the evidence is strong enough) the vast majority of scientists in the particular appropriate field accept one hypothesis as the best explanation for the phenomenon in question.
See the difference here? Religion moves from uniformity of understanding of reality to a diversity of opinion regarding such. Science processes move from a diversity of opinion to more uniformity of such.
If you want to know the truth about anything and you seek an answer, which of the following groups would you expect would give you the best answer?
1) One group of people initially states that they all agree that they have the correct answer. However, as time goes on, disagreement emerges within the group to the point where there are almost as many opinions on the matter as there are people in the group.
2) The other group of people initially argue among themselves over what is the correct answer. However, as time goes on, and through careful analysis and use of tools that all group members agree are appropriate, the group contracts around one opinion on the matter.