Science has not discovered anything. people using scientific methods have discovered those things you mention.
But since people are flawed and limited, one must at least accept the possibility that some scientific "discoveries" are flawed as well.
I do not believe we as humans will be able to discover the real truth of anything.
For example, my dog, no matter how smart i thank he is, will never, ever be able to comprehend algebra. he simply is not equipped to think in the manner that allows such computation. he is limited by physical structure and therefore blind to a variety of inputs and he lacks the neural pathways to think in certain ways.
Humans, too, are bound by limitations. Oh we like to think that the human mind is limitless in its ability to comprehend but that is mere hubris on our part.
There are vast, perhaps infinite, numbers of stimuli that we cannot process, thus we cannot fully comprehend. We may lack the neural wiring, just as my dog, to be able to formulate the necessary calculations that will reveal the truth about the origin of the universe and life itself for that matter.
so be humble.