You know, we weren't there and nobody saw it. You would have thought somebody would have recorded it.....
But that's the current theory; that a current of space dust got a little thicker in one part than in other parts, and the entire cloud's mass caused enough gravity to begin pulling everything nearby into the center. The space dust and stray gas was mostly hydrogen, because hydrogen is the most common element in the universe (which we know from observations, and our cosmological theories are based on this) as well as some stray helium, iron, carbon, lead, gold and every other element from #1 hydrogen to #92 uranium. Most of the helium and hydrogen fell to the center, while the heavier "metal" elements were distributed throughout the condensing nebula.
The metals, from lithium up to uranium, were formed long before when they were parts of giant stars that exploded in supernova explosions. Some of the mass in the core of the giant star would have been crushed into neutron stars or black holes, but during the moment of the explosion itself, heavy atoms were crushed into even HEAVIER atoms, creating the entire Periodic Table of elements. We know that these atoms of metals such as gold and silicon and iron and Mercury and everything else became parts of the various planets such as the Earth and Mars.
Gravitational instability of molecular nebulae causes formation of protostar, which evaluates to the star.
No. The gases of a nebula contract, and condense, to create large, dense spinning disks from which stars and their planets can form.
An explosion from outside the nebula
Yes.
The eye of god is a Helix nebula. Close to a Planetary nebula.
It is called a Nebula (nebulae for plural). no sorry but your wrong it is a coma It can be both it just depends. The question needs to be more specific
The Ring Nebula is classified as a planetary nebula which is a shell of gas and plasma, formed when certain stars die.So, in a way they are clouds of matter in space.
Brats of the Lost Nebula ended on 1998-10-24.
I think it's our Sun which gets heavier elements from fusion of hydrogen and other light elements.Edit: Our Sun does create helium from hydrogen by fusion, but that's all. The reason it has heavier elements is that these come from the nebula that formed the Sun. The heavier elements are thought to have come from stars that exploded as "supernovas", a long time ago.
A nebula
If the nebula is gravitationally unstable, it collapsing & forming stars!
no, it formed from a nebula, then condensed
the gravitational forces from nearby solar systems allowed a nebula to form and in that nebula were all the compounds needed to form the sun and planets.
It condensed from the interstellar nebula form which our star, the Sun, was formed.
Gravitational collapse of a protostellar nebula.
gravitational pull of nebula materials on each other
no
by soaking up helium form the sun=]] dont worry this is the right answer i got the answer frfom my teacher!!!!!
Because if they are sorrunded by a huge amount amount of gasses they mix up together hence forming the sun.
The Solar Nebula, which does not exist anymore.
Neither; it is a star. it formed from a nebula.