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

Provided a gas cloud is big enough and not being overly affected by gravity from other objects that keeps disrupting it it will absolutely form spheres.

This is literally how stars and gas giant planets like Jupiter are formed.

Is the cloud isn’t heavy enough the pressures from the gas atoms/molecules will prevent planet/star formation because the gravity forces won’t overcome forces from the gas trying to expand.