There is much difference between the two worlds mainly on the laws by which each work…example?
Well newtons laws of motion are not applicable for a microscopic particle…
But still when we compare the two Worlds we are able to get pretty much similarities. Mainly the orbits….
And now in the modern era considering the quantum mechanical model of atom the electrons are not placed on specific orbits but are in 3 dimension space surrounding the nucleus called orbitals….
Considering orbitals they are not much similar to the planet's orbits….
Well don't let your guard down because multi verse theory suggests that there are many universe which are close together….
Who might know if we're electrons our solar system is atom or galaxy is an element our universe is a complete part of a much large unknown universe that exists far beyond our reach….possibility exists