True, but I'd avoid saying any theory is proven, and even something as apparently obvious as gravity is not completely explained.
Indeed, the Theory of Gravity is discredited in this essay at www.re-discovery.org !
Neither physics nor mathematics is mentioned in the Bible. Does this mean that nobody who believes in God should study those fields?
How do those who take the Bible literally explain why they visit a doctor when they are ill? How do they explain what we see ithrough a microscope or a telescope? God doesn't tell us about microorganisms, but we know they exist. Nor does He tell us about how the Earth is but one planet that revolves around the Sun, yet we know this to be true. It was once accepted as fact that the Earth was flat. We now know that this is false. Even fundamentalists accept these facts.
So why do they have so much trouble accepting that the world is more than 5 or 6 thousand years old and that we and certain other species have similar DNA? DNA isn't in the Bible either, but we know it exists. Or do fundamentalists not believe that DNA exists? I'm genuinely curious how fundamentalists can take advantage of modern science on the one hand, yet disavow it on the other.