Do all planets revolve “horizontal” like around the sun?
Basically the planets and asteroids, and the majority of dwarf planets revolve around the sun in a flat thick plate of orbits separated by huge distances but as mentioned by other answers, hardly perfect owing to disturbances over the millions of years. As the dust and debris from the original solar system that was here (and gone) was disturbed and began to recycle for the 3rd (?) time, it began to spin around and heat as all the material bumped and come together with huge pressures. It was then that the material was spun of in it’s plane and rotates still to this day. Though the diagrams of electrons in their orbits as drawn would lead you to think they are the same though, they are not but the way they are frequently described it would make you think so.