The sun isn't an ordinary fire, but an ordinary fire can answer your question:
A fire keeps burning as long as it has fuel to burn. When the fuel runs out and
there's nothing left to burn, the fire goes out.
The sun is a nucleasr fusion reactor, pressing the nuclei of hydrogen atoms
together so hard that they 'fuse', which creates nuclei of helium and releases
energy in the process. The sun has been doing that for something like 3 or 4
billion years, and has fused something like 1/2 of the hydrogen it started with.
When the rest of the hydrogen is used up, in something like another 4 billion
years, the sun will either swell up, blow up, or go out.
In the long term, it will NOT remain stable. For example, it will eventually run out of fuel, and long before that happens, it will become a red giant.
In the short term, it works something like this: if a star like the Sun contracts too much, its gas pressure and temperature will increase; this will increase nuclear fusion, and thus the radiation pressure. This will make it expand again. If it expands too much, it is just the other way round - nuclear fusion will decrease... etc.
As a result, in general terms, it tends to remain in an equilibrium size (and power output). However, note that many stars pulsate, which means that they seem to expand and contract regularly - around such an equilibrium point, similar to a pendulum that moves past its equilibrium point and then goes back again!
The fusion of hydrogen into helium occurs because of gravitational force. Energy is released across the E-M spectrum part of which is visible light.
gravitational pull keeps it there and its shape now that u know why the hell did u wanna know that that is jus common knowledge
any life on any planet has to give off energy and when they do an invisible force will push it to the sun and the sun will digest it and will get more energy
Gravity. Any object above a certain mass will maintain a more or less spherical shape, due to gravity.
Gravity.
there is something which handles everything....there's invisible supreme power in the world..... In terms of science, it is the nature of the nuclear reactions that power the Sun.
In equilibrium.
Of course. The sun is over head because the world could tilt towards the sun from your point of view. And it's not rare.
they dont it stays the same every day
The force of gravity helps to keep the Earth and Sun stable in its rotation. Without gravity, the planets would float around knocking into each other or would travel too close to the sun.
The sun is expect to remain stable for another three billion years.
The sun is expect to remain stable for another three billion years.
roughly 6 billion years
gravity is what keeps the earth in orbit around the sun the gravitational pull exerted by the sun causes the earth to remain at a relatively stable distancefrom the sun
there is something which handles everything....there's invisible supreme power in the world..... In terms of science, it is the nature of the nuclear reactions that power the Sun.
"Inertia" plus gravity (of the sun). Note that the orbits do change over time, but that in the last few billion years they have been quite stable.
It may have captured or formed moons in the distant past, but none remain. The closeness of Mercury's orbit to the Sun would likely prevent moons from maintaining a stable orbit.
It wont, as the sun expands over time, the sun will become cooler and cooler.
In equilibrium.
That's the speed it needs for a stable orbit around the Sun. Any object at the distance of Jupiter (from the Sun) that moves much faster than that will be catapulted out of the Solar System; if it moves much slower than that, it will fall towards the Sun. 8 miles per second is approximately 13 km/second; for comparison, the Earth moves around the Sun at a speed of about 30 km/second. Being closer to the Sun, it must move faster to remain in a stable orbit.
No.
Of course. The sun is over head because the world could tilt towards the sun from your point of view. And it's not rare.