Gas diffusion in space.

Question

Hey all,

I was wondering about how stars are made from gas clouds. Shouldn’t gas always diffuse within the container it is in? In this case, diffuse into space?

So how do gas clouds accumulate enough mass to form a star, instead of all gas diffusing into empty space?

Thanks for any insights!

In: 2

Answer 1

Diffusion is just part of the things that play a role in transport, you have to take into account other forces and interactions.