why doesnt the sun burn out?

Answer 1

It will - every sun eventually burns out it is simply a huge star. It will burn out in like a billion years or something lol.

Answer 2

The sun is huge, and is creating new elements. The process is nuclear fusion. Under intense pressure and heat elements are fused together to create new elements. This creates a burst of heat and light(multiplied trillions of times).

Eventually, there will come a time when there are no new elements left to burn, and the sun will die. As it does so it will cool, its gravity will reduce and will swell to become a red giant. It will become so big that Mars will be below the sun's surface.

This will not happen for at least another 5 billion years. The sun is halfway through it expected life cycle.

Answer 3

It is burning out, but slowly. It is not burning in the sense of a big bonfire burning wood...it is a fusion reaction.

The Sun's current age, determined using computer models of stellar evolution and nucleocosmochronology, is thought to be about 4.57 billion years
The Sun is about halfway through its main-sequence evolution, during which nuclear fusion reactions in its core fuse hydrogen into helium. Each second, more than 4 million tonnes of matter are converted into energy within the Sun's core, producing neutrinos and solar radiation. The Sun will spend a total of approximately 10 billion years as a main sequence star.

Answer 4

The Sun will actually expand large enough to make Earth uninhabitable before it burns out. The immense gravity of a star sucks in loose matter and uses it for more fuel. The same gravity is what causes the reactions in the first place, it also keeps the Sun from actually exploding. The gravity is caused by the extreme density and size of the star. Eventually, one it does burn out and there is no longer the outward force caused by the explosions, it will collapse on itself and create a black hole. But there's a loooooooooong time before that happens.

Answer 5

The sun is a huge nuclear reactor. The huge gravity forces are causing atoms of hydrogen to fuse together into deuterium, deuterium atoms fuse together to produce beryllium, then lithium and so on to produce the heavier elements. Each fusion reaction releases atomic particles, gamma rays and other radiation as well as heat. The earth's magnetic field and atmosphere protect us from most of the nasties, but of course the heat and light is what provides the energy that drives life on earth. Eventually, all the hydrogen will be used up, but this is not something that will bother any of us.

Answer 6

It will eventually. However, to 'burn up' all the fuel in the sun takes a long, long time!! There's a great deal of hydrogen in there!!

Below is a link which explains the life-cycle of a star/sun, in terms that aren't too confusing and complex!

Answer 7

it is in the process ( once it burns the hydrogen then it will move through the elements until the carbon burns and the sun will go out - but it is multi-billion year process )

Answer 8

theres a lot of hydrogen left to fuse
the energy released by the fusion of hydrogen atoms counters gravity and so the sun neither collapses nor explodes, for a time

i think about 5 billion years left to go?

Answer 9

oh yes the sun does not burn out, but when it turns and it reaches a certain point where its light is covered by the earth's surface or shadow, that when it loses its heat and light on our hearth...!
at this point the sun heat and light reaches another planet. and we on earth are in the night or in the rain.

Answer 10

It will eventually, when it will turn into a Red Dwarf, or something like that I can never remember, but currently it's burning up it's supply of hydrogen.