Gravity and gas.
Gravity works with Pressure to keep a Nebula from collapsing.
inner and outer balance makes it.
the pressure pushes the nebula together just like magnets to keep it from falling or collapsing, and the gravity pulls the exess debri into the nebula to keep it packed tight.
Hajanbs
Hajanbs
Gravity works with Pressure to keep a Nebula from collapsing.
inner and outer balance makes it.
If the nebula is gravitationally unstable, it collapsing & forming stars!
the pressure pushes the nebula together just like magnets to keep it from falling or collapsing, and the gravity pulls the exess debri into the nebula to keep it packed tight.
Gravity
Hajanbs
Hajanbs
Polio
Polio
gravity maybe?
Protostar
The shapes that collapsing nebula take are a result of a combination of haphazard directions of movement and force responding to the initial motivating nudge from some external force and gravitational attraction and formation of clumps with in the nebula. The shape seen i.e. a blob, elliptical, etc. is in all probably a function of time with regard to the evolving motion and gravitational organization of matter with in the nebula.