So this is going to be my wedding cake one day, but it will probably be bigger with more tiers of fondant. Not even joking. It is also going to be on a rotating cake stand. Now I just need a groom who is just as crazy, if not more, about the universe as I am.
There should be 8 layers. And each should rotate at a different rate.
Source: stellar-indulgence
Copernicus was also a cake maker.