So no graviton. We have curved spacetime. I'm confused ->. Talking about an RF transmitting antenna, or piece of Uranium, I think of radiation as being spherical. That is, no matter your position you will detect the radiation from the object, and it will be a uniform distribution. But I see particles, like in a cloud chamber have a definite direction. Onto gravity. I see the dimple from putting a ball on a piece of cloth, and how the cloth causes orbital movement. My thought is that spacetime is not like a piece of cloth. It has 3 dimensions. That is how gravitational lensing works. So given that spacetime is 3 dimensional, what does it really look like? Does the ball cause spacetime to be more dense near the surface of the ball, and less dense further away? Is it causing a dip or increase in the vacuum pressure? I'm getting (in my imagination) a picture of a ball that is pushing spacetime outward, causing it to be more dense near the surface of the ball. So I'm thinking Sun - Earth. If spacetime is actually denser near the Sun, why would Earth be attracted to the Sun. Is the orbit of Earth with its mass and speed interacting with differing spacetime densities?