For some, yes, science is the same as religion (but don't ask them to admit that 😀)
Formost, let us define science. For the purposes of this discussion, we are talking about natural science. Natural science is a system of knowledge concerned with the physical world and its phenomena. It ascertains its "truths" through use of the scientific method. The scientific method are a set of principles and procedures for the systematic pursuit of knowledge involving the recognition and formulation of a problem, the collection of data through observation and experiment, and the formulation and testing of hypotheses.
There exists a simple, humble, and fatal flaw to this. Everything hinges upon the empirical. Certainly, this is no flaw of the system, it is the only way in which we can gather data. It is our limitations as physical beings, first hand observers. This, inherantly, poses a problem, being that we lack the capacity to observe everything. Science itself has uncovered a vast myriad of things which we had no idea existed before, purely due to our inablity to observe them. Cellular structure, atomic structure, sub-atomic structure, all systems far to small for us to observe naturally. To the converse, how about our understanding of the universe beyond our solar system? Our galaxy? Indeed, science itself has uncoverd a great many things we had no capacity to observe, let alone understand, and it continues to do so.
This being the case, this is also the problem with science, most specifically and especially when it attempts to theorize on something of vast scale which is unobservable first hand. The fallacy is only exacerbated when we theorize about things over vast spans of time and space. That which limits our ability to perceive limits the plausability of our theory. Science attempts to theorize about items of great question and wonder which we can only surmise through a complex system of assumption. Logically, this limits the ability of a theory to maneuver into the realms of fact and truth.
On another level, science is plagued with a similar quandry as your typical large scale religion.
Personal agendas of the agents of the system.
Indeed, numerous are the examples of scientists fabricating results to further their ambitions. A great scientific find published on the cover of a major publication may turn out to be a fraud. Now, I do not mean to infer that one should be overtly suspicious of every scientific find they read about, but such things can and do occur, and should be weighed. If anything, I would say I am more prone to take a finding as scientific fact if/when it has been carefully reviewed by a number of independant peers in the field, and has withstood some time of scrutiny.
The scientific purpose is intended to be pure; The best system we have to understand our world and the universe it is in. However, if we are earnest pursuers of truth, we will understand the limitations of the system and give evidence its proper weighting and not jump to conclusions. Alas, there are quite a number of people in this world who are all too happy to gobble up anything the scientific community throws at them like it was gospel (pardon the ironic comparison). Science and religion share more than many people who have chosen a side of the fence to sit on would like to admit. Like many a religion, science is pure in purpose, it's the human operation of it which contradicts its original intent.