If the fire needs oxigen to stay burning, and in the space theres no oxigen , how the sun stays burning all th

Answer 1

What we typically refer to as burning is a combustion reaction. Which is a chemical reaction involving a combustible material and oxygen which usually produces carbon, heat, light and some random gases that very based on the original combustible material. Basically the bonds between the different elements in the original compound are ripped apart and the elements in the chemical are paired with different elements. Energy is released in what we see as fire, gases are released in what we see as smoke and carbon is left in what we see as ash.

The reaction taking place in the sun, however, is a very different type of reaction. In chemical reactions, different elements are paired with other elements to create new chemicals. However the sun is undergoing a nuclear reaction. In a nuclear reaction the element itself is undergoing a change into a different element. Remember that Hydrogen is 1 proton and 1 electron. In the sun, the hydrogen atoms are being forced together so that two hydrogen atoms become one atom with 2 protons and 2 electrons (helium). This reaction releases alot of heat and alot of light. Much more than the combustion reaction. And that is what we see. Sort of...for more information though you should search for "Sun" on wikipedia!

Answer 2

Wow, I am completely shocked by what all the others write ... most of it is just crap or only half the truth.

The Sun doesn't "burn". There happens what we call fusion. That means two atoms kinda melt together, produce a new kind of matter (2 times hydorgen results in helium, two times helium results in the element one rank higher in the chemical system and so on).
This fusion is so hot, that we speak of a so called thermo nuclear reaction. Why is it so hot? When two atoms fuse, energy is set free. The higher this energy, the hotter it is.
One day (in a far future, about another 5 billion years from now) all hydrogen will have been fused to helium, and all helium will have fused, too and so on ...

To the other users:
There is NO melt down, and fusion is NOT similar to fission (what a crap) and especially "gonziiii" is telling the biggest nonsense ... the sun has about another 5 billion of years left .... also the sun is not on fire, this is a complete wrong expression. Also helium does not break up to form hydrogen ... If it was that way, the sun would be a so called perpetuum mobile, but that doen't exist. Helium also undergoes fusion to form other, heavier elements, these again undergo fusion ... depending on heat and pressure, even elements as heavy as radon and uran can beformed during such fusion ... if it wasn't like that we would have such elements on earth.

Answer 3

By what you know about fire, yes it needs Oxygen, heat and combustible material. The sun is a different type of fire, as stated above it is a nuclear reaction that produces large amounts of heat and radiation. The fire you are referring to also gives off radiation, but a much lower level. Not all heat generation needs Oxygen, just a way to produce heat through chemical or molecular changes in the materials that come in contact. Now if you are referencing a flame, that is a little different. A flame is the flow of material (in mostly gas form) that is being ejected for the heat generating process. The suns flames are plasma flares that contain many different items that distort light and seem to be the same in appearance and principle. Content is much different. Same as you see with a camp fire.

Answer 4

Your talking about a very cold type of reaction which is rapid oxydation also known as fire. What happens on the sun is a totally different animal, It's fusion. It's creating hydrogen from helium. The sun is a Fusion Reaction. Fusion is the creation of a new element when other elements are put together in the right environment.

Fusion is similar to Fission. Fission is Dividing an element to release its energy. Fission is used to create nuclear power, and it is the energy behind nuclear warheads.

Answer 5

The sun provides energy to Earth through a process called nuclear fusion, in which atomic nuclei are fused into heavier elements, releasing energy in the process.

The Sun is a massive ball of hydrogen and helium gas. At its core, pressure and heat are enough to overcome the repulsive electrostatic force between the positively charged protons. The fuel for our sun is regular hydrogen, or protium (which only has one proton and one electron).

The specific process of fusion for the sun is the proton-proton chain, in which 4 protium nuclei fuse into an alpha particle (an ionized helium-2 nucleus). In this process, two positrons, 2 neutrinos, and gamma radiation are released.

Answer 6

The sun does not burn with oxygen; the sun is undergoing a nuclear reaction where hydrogen is slowly being converted into helium.

Answer 7

The Sun (or any star) does not burn. Burning is a chemical reaction. The sun works by thermonuclear fusion, which does not require oxygen.

Answer 8

The sun is undergoing nuclear fusion, where intense heat and pressure is forcing hydrogen atoms to collide and form helium atoms. This fusion releases even more heat and pressure, causing more fusion reactions.

Answer 9

the sun is undergoing a nuclear meltdown, ie it is disintegrating and as a result a lot of energy is being released in form of heat, light and other radiations, this has been going on for millions of years and its coming to an end soon, thats what keeps scientists pretty worried, our sun is dieing soon tho it won't be in our time, most sincere scientists agree that the sun still has at least 200 yrs left. That is y NASA etc have been trying to build space stations and planning to setup civilisations on other planets but unfortunately they don't have the technology to do that, at least not with the aging cranky shuttle....they don't have much time tho, if they really want to save the planet or the human specie

Answer 10

on sun there is no fire.during nuclear fission and fussion hydrogen combine 2 form helium,and helium breaks up 2 form hydrogen lot of amount of heat is produced approx heat given by burning of 1000kg of coal.