All in science, even facts, are tentative and subject to revision. It once was a fact that the earth was flat, but mow we know better and have a theory to explain the fact that the earth is a...
Yes and no.
More often than not a scientific fact is refined.
Take the value of pi. for centuries 3 was good enough for all practical applications, then it was 3.1, then 3.14159 and on and...