Gases in space, do they form little spheres like tiny planets or move like earth clouds. How do they keep themselves together?

Question

Gases in space, do they form little spheres like tiny planets or move like earth clouds. How do they keep themselves together?

In: Physics

Answer 1

If you’re talking about huge masses of gas like nebulae, then they keep themselves together with the help of gravity. Small drops of liquids tend to hold themselves in a sphere due to surface tension. gases don’t have surface tension. if they do, it’s negligible. So gases just spread to infinity