If oxygen is necessary for combustion, how does the sun produce the heat it gives off?

Answer 1

The sun does not produce energy via combustion; the sun produces energy through a series of thermonuclear reactions that occur deep in the core of the star. These reactions convert protons into helium nuclei, and in the process, generate the energy that is eventually emitted to space. Astronomers will use the word "burn" to describe this process, but in no way do we mean combustion, rather, we use "burn" as a verbal shorthand for the energy produced by thermonuclear reactions.

Answer 2

Yes oxygen is necessary for combustion, but Sun do not undergo combustion.

the sun is nothing but the ball of gas and dust that is 70%hydrogen, 28%helium and 2%other heavy metal. The neclui rotates so fast in this ball the it fuse or say attach to eachother, this is called nuclear fusion. During this process they emitts light and this light is seen by us, as this light is produce in temperature more then 15 billion, that is at very high temperature this light is produce thus will feel the heat.

Answer 3

Combustion is an oxigen Reduction process. This process only take place on earth and no where else.

We receive heat from the Sun as result of micromass radiation power that the sun Emits. Partial Mass lost by the Sun is the Energry we receive on earth that we feel as heat as if it was from a fire. The so called fire from the Sun is really a nuclear fusion reaction process.
There are about seven processes of Nuclear Fusion in The Sun .These processes are still not exactly understood by science. The Reason is that no definite conclusion as been reached to Understand what is exactly Energy.

Answer 4

The sun produces heat and light through 'nuclear fusion,' the same process that happens in a hydrogen bomb. Basically in the sun's core a huge hydrogen bomb is continuously exploding, and has been for the last 4.5-billion years.

Answer 5

probably no longer in our lifetime. at the same time as i imagine it would want to be technologically attainable to construct an interplanetary liner, I doubt it truly is going to be economically possible. the only strong motives to visit different planets are clinical analyze, for which spacecraft are not any further going to be exceptionally fancy, or tourism for which spacecraft might want to be extra luxury yet can be small because it truly is going to be only for billionaires. also the spaceships in well-loved human being Trek, well-loved human being Wars, and maximum different technology fiction earnings from distinctive fictional technologies that couldn't artwork in authentic existence. in words of what the spacecraft feels like, the massive one i imagine is man made gravity, which lets them have a format very like an ocean-going deliver with decks one above yet another and the significant engines on the decrease back. a pragmatic spaceship is not like this. there is two strategies all of us recognize to simulate gravity. One is by employing spinning the spaceship, and this can mean the spaceship will be a cylinder or probably doughnut structure. the different is by employing increasing, that can enable pretty a lot any structure (in spite of the indisputable fact that the favor to take off and land on planets might want to probably ascertain the actual structure) yet might want to position the engines no longer on the rear yet on the bottom.