Is outer/inter space like a liquid, with depth and thermal layers?
Light does not bend in space. Gravity warps space and light follows the warp. Imagine a bowling ball on a trampoline. It would have a funnel look to it. Then roll a baseball past the bowling ball, not too close, not to far. The baseball will go somewhat into the funnel and change directions and then continue on straight. Thats what light does when it travels thru space being warped by gravity. In liquids, it refracts – refraction is the change in direction of a wave due to a change in its speed. This is most commonly seen when a wave passes from one medium to another. Refraction of light is the most commonly seen example, but any type of wave can refract when it interacts with a medium, for example when sound waves pass from one medium into another or when water waves move into water of a different depth. These are two different things. There are no thermal layers in outer space. Almost all of outer space is of a uniform temperature – about 2.7 Kelvin. Your look on why the universe is
