I never said they were the same thing. That said, your worldview is blinding you to something far more real than gravity. I fully realize you find that hard to believe, but it's true. The object of your faith is science, and mine is Christ. Your faith is built on empirical evidence, and mine is on historical evidence.
I don't have any faith in science, at least not in the same sense as your religious faith.
Scientific conclusions change all of the time, and if General Relativity or Mass/Energy Equivalence were disproven and replaced with better theories tomorrow, it wouldn't affect how I live my life one bit. In fact it would be exciting since we'd be a step closer to knowing the mechanics of the universe. There could be a massive change in the way science is conducted in the next few generations. Maybe we will ditch the current scientific method(s) for something else. That's what is great about science; it could all be wrong if we come up with a better explanation.
Could you say the same if they disproved Jesus' existence, or his claims?
Of course not. You've already made up your mind, and no amount of reasonable evidence could make you conclude otherwise.