[polymatter]

In a fundamental sort of way you're quite correct. Science can never _prove_ things correct in the same way mathematicians do. In fact, science constantly revises over time. It is not "done". And as a reminder, the way something is proved is when recognised scientific minds perform peer review and conclude it is proved. And they often get it "wrong" as most published science is later proven incorrect. This is science working.

However, this doesn't open the floodgates to any old theory because a simpler theory that explains the data is preferrable to a more complex one. Your green goblin theory might fit the data, but then leaves open questions like what do green goblins eat, why were they not detected previously, what else might they affect etc etc.