By that, I mean, why do planets always orbit… horizontally(?) around the sun. Why not vertically? Space is a 3D space, I’d course. So why would the planets not end up going up as well as sideways?
Edit: Space science is a lot more complicated than I thought, and I am here for this rabbit hole. Ty everyone for your answers so far!
In: 2352
Imagine you and nine friends going down a wide waterslide. At the beginning you are bumping into each other a lot. But as time goes on, you find yourselves going more or less parallel and collisions are more rare. By colliding you have evened out your sliding direction.
Most big stuff in our solar system orbit in planes in the same directions because the average motion of all the things colliding around that gravitational centre was going that direction to begin with. There is only one equilibrium but many ways to be uneven.
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