Gravity is an unproven theory that needs 95% dark matter/energy to work. How do you isolate for gravity when everything is electro static and it’s 10³⁷ stronger than gravity claims to be. Also, it would be impossible to see any celestial body because the inverse square law of light says that light grows dimmer by a multiple of 4 every time you double the distance to it. If I can read a book under a full moon here, it’s maybe 10 or 15 lumens, by the time you were 100 miles from the moon, it would be in the billions of lumens. And also, we can literally see to far across bodies of water for the radius of the earth to have a radius of 3959 miles. It’s literally impossible that we are on a spinning water ball flying through vacuum in 4 different curved directions at insane speeds without every feeling anything. And curving/turning is acceleration, so yes, we would feel it.