Jonesy

Let's try a particle-based theory.

What if the difference in gravity comes purely from over-lapping particles? The particles from the sun must be here, in-and-around Earth, mixed with the particles from Earth. This would explain why the moon gets caught in Earth's orbit, instead of the Sun's. This results in heavier gravity, because it is like adding 1+1. This means, there is no stretching, or greater decline based on distance alone.

The reason the moon doesn't get sucked into the earth is because the moon, the sun, and the earth are all moving. When the moon is full, it is because part of the moon's particles are adding to the sun + earth? Maybe when on one side of the half-moon, the moon gets close enough to add particles because the moon is arcing while the earth is moving straight towards it?

If this is the case, to control gravity, we might have to 're-arrange' the particles of the Earth and Sun, condensing them where we want controlled-gravity; or figure out how to add a third-layer. Although, this could make it even easier... once we figure out how to make it work.