Maybe it's a stupid question, so I will delete it if it will receive too many down votes but..
I was wondering about the Universe, and the fact that
- We know it's expanding;
- We don't know if it has an edge, maybe yes maybe no;
But.. does the Universe spin? If we should describe the entire observable Universe as a "body", we should take into account its expansion but would it be also described as a rotating body or as a non-rotating one?