But through out history, science has continued to prove and disprove many things that people believed to be absolute truths.
Just like today. Scientists "think" they know what black holes are (or even if they exist). The fact that people (many who post here) believe the existence of worm holes/time travel/etc to be true....even though it can't be proven or touched. Yet, those same people will say with complete absolute that a diety does not exist.
Point is we don't know what the truth or reality is....just our perception of what we believe it to be.
I don't know whether God exists or not. I am one who tends to believe what he can touch/feel/prove. Yet, as I fully support critical thinking, I am the first to admit that I don't know what said truth is.
There isn't a single scientist worth his salt that deals in absolute truths about much of anything. We know gravity, evolution, etc. are indeed facts, and we have theories that make sense and have evidence to back them up. If new evidence arrives that contradicts an existing theory and it is studied and found to indeed be correct, then a new theory is formed or the old one is revamped based on the new data. It is not that hard.