No, there are versions of claims based on science, that are closed.
A short example:
You will find at least one poster here, who claims that science and logic can prove that there are no gods.
Science is a social construct and have variants just like religion.
You are simple a member of a subset within what you believe about science.
I mean, I seem to recall that on this forum or maybe another forum, but that is not the point. The point is that the poster claim science proved metaphysical physicalism.
Anyone who claim science, uses science, just as anybody claims Christianity uses Christianity.
"Science, since people must do it, is a socially embedded activity. It progresses by hunch, vision, and intuition. Much of its change through time does not record a closer approach to absolute truth, but the alteration of cultural contexts that influence it so strongly. Facts are not pure and unsullied bits of information; culture also influences what we see and how we see it. Theories, moreover, are not inexorable inductions from facts. The most creative theories are often imaginative visions imposed upon facts; the source of imagination is also strongly cultural. [Stephen Jay Gould, introduction to "The Mismeasure of Man," 1981] "
Indeed even if you read this Wiki article, you will notice that there is no one variant of science:
Philosophy of science - Wikipedia
For a practical example, there is a current thread about morality and science, where a poster claims that science can do morality, yet there is this:
https://undsci.berkeley.edu/article/0_0_0/whatisscience_12
So no, science is in some versions closed, because in effect some people use to claim absolute facts, which can't be doubted. Just as some religious people do.