The flat earth theory makes the most sense. There is a firmament above us and the planets are inside the firmament. The planets are not actual planets that you can land on, they are just 3d objects, like decorations inside the firmament so when you look at them they look 3d. The starts are just lights inside the firmament. You can't break the firmament or go past it. We are basically stuck inside this Truman like dome.

So all the bullshit about going to space and colonizing the universe is a big lie in order to hide the fact that a creator exists, that and they are trying to break though the firmament using the SpaceX rockets.