getting real life scale in my 360 vr video.

How can I effectively achieve real-life scale for a 360 VR sequence video within Unreal Engine? I am trying to create an outer space vr video, even after increasing the scale of the spaceships and other 3d objects in the scene, it still feels like the universe is a room, instead of a big space.

I am not a UE or video professional and the following is simply based on my experience.

To get close to the experience of actually being there in 360Video, move the surrounding objects as far away from the camera as possible.
In reality, if you move your head while looking at an object in close proximity, you will see the sides of the object and the light reflection will change.
However, since Video is a baked texture, such changes do not occur.
So an object in close proximity will not feel as if it were real, but rather as if a huge screen were being placed on it.
Objects in the distance are less disconcerting, because even if you move your head a little, they look almost the same as they do in reality.