My question stems from the idea from GR, that space is a physical quantity bended by gravity. The question is this: If space be a tangible, physical, thing, in which gravity effects it, among other things, then shouldn't the Earth's movement(and the movement of other bodies) be dragged by this space? Additionally, we have dark matter and dark energy, both of which are masses which should impede Earth's movement along its orbit. Are space, and dark matter and energy, so insignificant that they are essentially moving through the Earth? Or do they drag as the Earth moves through all of it? Or a combination of both?