Big Bang Theory. How did the sun first Ignite?

Question

I don't believe in the big bang theory. I am interested in what other people believe. So if there was a large explosion that led to collections of matter (planets/stars) - assuming the sun started out just as matter that was not burning ...I wonder how did the sun and other stars first ignite?

Answer 1

Hyrdogen Molecules (which were clumped together by gravity to form stars) ram into each other. This forms Helium molecules and release energy. This energy is the "fire" than burns.

Answer 2

The sun (and the earth) was born 9 billion years after the big bang. Just a small detail...

It would have been difficult for the first stars to form as the only elements were hydrogen and some helium. And even smaller amounts of lithium but all matter exerts gravity on all other matter. The big bang wasn´t totally homogeneous so matter was unevenly distributed. And so there were clumps of matter that acted as gravity wells, trapping more and more gas. Eventually the pressure and temperature at the center of this object became so hot that hydrogen nuclei began fusing. And the first star was born. The clumps of matter eventually created more and more stars that became the first galaxies. Some stars where incredibly massive and after only a few million years they exploded as the first supernovae. As they did so they spread enormous quantities of heavier elements like carbon, oxygen, nitrogen and silicon. So not until a first generation of stars had come and died could other objects like planets form. Just a brief cosmological history lesson...

So the sun began as a cloud of dust and gas spread out by a supernova. As the cloud became instable, possibly by the chockwave from yet another supernova or an ordinary nova or maybe even a helium flash, the birth of the sun was inevitable.

Answer 3

The Big Bang and stellar evolution are two separate and independent theories. The Big Bang attempts to explain how the universe came into being, and deals with things like the processes by which the primordial energy coalesced into matter, and how the properties of matter and space developed.

Stellar evolution theory would be the same regardless of where the material came from. This is a better developed theory than the Big Bang because we can observe the processes of starbirth today in our own galaxy. Basically, huge clouds of gas collapse into clumps, driven by their own gravity and possibly triggered by outside influences such as supernova shock waves or collisions with other gas clouds. When the core of one of these clumps becomes dense enough, hydrogen begins fusing into helium, and a star is born. There is some uncertainty over details such as what becomes of the angular momentum of the collapsing cloud, but the basic physics of the theory is well supported by both observation and calculation.

Answer 4

For a more complete explanation you may want to read a book like Neil deGrasse Tyson's Cosmos. In brief:
A fraction of a second after the expansion of the singularity (big bang), matter seperated from energy.
During the next few seconds subatomic particles formed protons and neutrons.
Then protons and neutrons formed hydrogen, with some helium and traces of litium.
It took millions of years for the first stars to form, as a result of hydrogen (traces of helium and a little lithium) atoms aggragating by gravity.
These first generation suns were extremely large and relatively short lived. They converted hydrogen and helium to heavier elements by nuclear fusion. They died explosive deaths by supernovae, which scattered these heavier elements throughout the universe.
Second generation stars began to form (by gravitational attraction) out of hydrogen, helium and some heavier elements.
Our star, the sun, is a second generation star, that "ignited" when the collapse of atomic elements reached the point of a nuclear fusion reaction.

Answer 5

the sun is a large collection of hydrogen gas (and, some other elements, too...) As it collected, due to gravity, there was an internal pressure that grew as the matter collected. The pressure started heating the core, until finally, the large ball of gas grew hot enough, and the pressure great enough, to ignite fusion. It goes on even now, due to the suns immense gravity. Take enough of the sun away, (ie - remove the internal pressure) - and the fusion process stops.

Answer 6

I had a Chevy Nova once and I smashed into this Mercury Comet and let me tell you....there was a Big Bang and a huge explosion. Took me back to the good old days some 9 billion years ago.

Answer 7

Gravitational compression of hydrogen keeps increasing the pressure on the hydrogen. When temp and pressure are high enough, the nuclei fuse to helium, there is a mass loss and the energy released by Albert's famous e=mc^2.

I don't even know if I believe that any more ....LOL

And why are some starts/galaxies BLUE shifted...????

Read James Hogan's, "Kicking the Sacred Cow"

Everything happened to make things the way they are now, except those things that didn't happen.

Answer 8

Do not let others intimidate you. There is nothing wrong in not believing in the Big Bang THEORY. There are several other valid models which explain things better, some worse. Use your own brain and research for yourself. Don't let the intellectual bullies try to ram a flawed theory down your throat.

Answer 9

The Big Bang theory has little to do with stellar formation (the beginning of the sun).
You showed yourself when you said "I don't *believe* in the big bang theory." It isn't to be believed or disbelieved. It's to be understood or not understood. You don't understand it - that is SO obvious. Get some education on it and then come back here with your opinions about it.