i think the answer is hydrogen and helium but I'm not positive so don't blame me if you get it wrong.
Gravity compresses gases at the center of a solar nebula until temperatures are high enough for nuclear fusion to occur.
A spinning disk is formed by the nebula shrinking is 4. The planets forming is 7. The planets form gas and dust accumulate as a nebula matter separates into galaxies. Nebula shrink to form a spinning disk,gravity pulls gases to the center of the disk .Gas at the center of the disk becomes hot and dense enough for nuclear fusion to begin
dust, tiny rocks.
Pressure and gravitymay have become unbalanced in thesolar nebula because of an externalforce such as a collision of the solarnebula with another nebula or from anearby exploding star. This type offorce, was strong enough to overcomethe pressure of the nebula and triggerits collapse.
Pulsars were discovered in the Crab Nebula, a supernova remnant, in 1967. The Crab Pulsar is a neutron star at the center of the nebula that emits beams of radiation, producing regular pulses of light. The high-energy particles and magnetic fields in the nebula power the pulsar's emission.
Gravity compresses gases at the center of a solar nebula until temperatures are high enough for nuclear fusion to occur.
When a nebula collapses due to gravitational forces, the center becomes denser and hotter. As the material in the center becomes more compact, the pressure and temperature increase, eventually triggering nuclear fusion reactions that sustain a star's energy. This marks the birth of a new star in the center of the collapsing nebula.
The material at the center of a nebula clumps together as material is pulled there. This allows a star to form.
When the gas in the nebula's center stopped collapsing, it likely reached a stable equilibrium where the inward force of gravity was balanced by the outward pressure from nuclear fusion or other energy sources. This equilibrium could result in the formation of a protostar or a star, depending on the mass and composition of the gas.
the protostar
The Sun.
A dead mammal
It formed the sun!!
A spinning disk is formed by the nebula shrinking is 4. The planets forming is 7. The planets form gas and dust accumulate as a nebula matter separates into galaxies. Nebula shrink to form a spinning disk,gravity pulls gases to the center of the disk .Gas at the center of the disk becomes hot and dense enough for nuclear fusion to begin
Polio
Distance to center of Milky Way: about 26,000 light-years. Distance to Orion Nebula: about 1,300 light-years.
A supernova occurs.