who can the sun stay shinning all over millions of years without turnning off?
93555
Lots and lots of atoms fusing to make bigger and bigger atoms.
893069
The sun will get slowly brighter over the next few billion years.  Then, it will go through a red giant phase of expansion and contraction that will last another few hundred million years.  Finally, the outer envelope will blow off revealing a white dwarf that will slowly cool over several more billion years.
867403
The sun is made of hydrogen.
547582
The gravitational pull of the sun is stronger than that of the Earth. So your skeleton would probably end up in the sun after many, many light years.
1112651
Yes. but for it to stop then the Sun would first have to disappear as it is its gravitational pull which is causing the Earth to orbit at such speed. So there is probably more chance of you winning the lottery every day for the rest of your life than the sun doing a vanishing act.
186428
As far as planets go, Mercury.  All the time.  No planet ever gets closer.  I'm not quite sure what these folks are trying to pull with "pluto" but the closest it ever gets to the sun is still over 26 times farther away than the earth's orbit.\n\nComets and asteroids can get really close to the sun, in fact there is a class of comets that we call "sungrazers" they actually fall into the sun and never return.
1054717
The sun is about 4.5 billion years old and about 1/3 rd the way through it's expected life. Scientists have given us a glimpse of what to expect as the sun ages.\n\n1.1 billion years or so, it will become 10% brighter. This will cause the earth to become super heated, all life will be destroyed and the oceans will boil away. Then in another 6.5 billion years, it will double in brightness and burn its supply of hydrogen fuel in its core. The sun will swell and become bigger than what we see today.\n\nAt around 8 billion years or so, the size will increase to 166 times and reach as far as Jupiter. The color will be red and it will be known as a Red Giant, but once the hydrogen fuel is depleted and the sun has reached the outer regions of Jupiter, it will start to shrink, losing both energy and brightness as it quickly consumes it's helium in  in 100 million years or so..\n\nThen, at around 12 billion years, the sun will eject much of its outer layers and become a smoldering, collapsed core that scientists would call a White Dwarf, but this is not the end, for it has one more transformation. It eventually will become a Black Hole.\n\nIf you would like to see what the sun will look like when it becomes a White Dwarf, go to:\nhttp://www.physorg.com/newman/gfx/news/m2_9_large.jpg
375923
The sun is a powerful thermonuclear device.  Very little will withstand exposure to sunlight forever.\n\nTypical modern plastic based solar cells will last for 15 to 20 years.  "Glass technology" can be extended to 25 to 30 years.  Premium quality last as long as 50 years and counting.
53656
Around 4.57 billion years old.
985287
THe SUN IS NOT BURNING. IT IS MADE UP OF MILLION OF STARS SO IT DOES NOT NEED TO BURN.
737950
The sun is very gradually getting hotter. In about 5.6 billion years, most of the oceans will have boiled and most life on Earth will be gone.\n\nIn about 12.233 billion years, the sun will start to run out of fuel and become a red giant star. It will expand until the outer surface is somewhere between the present location of Earth and Mars. All life on Earth will end.\n\nThis will be because there is no more hydrogen left to make into helium in the core of the sun. When this happens, the sun will start to collapse (not enough force from core pushing out) until it starts fusing helium! This will result in a very dense and unimaginably hot core that produces so much energy that it pushes the outer layers of the sun out to where Earth is now.\n\nIn 12.365 billion years it will run out of helium too and blow its outer layers off entirely when it starts fusing heavier elements. The end result will be a white dwarf (large ball of slowly cooling fusion waste) and a very pretty, very large bubble of glowing gas that will look something like this:\n\nhttp://www.edwinhubble.com/hubble_gallery/planetary_nebula_IC_418.htm\n\nFor the complete past, present and future of our sun, click here:\nhttp://www-astronomy.mps.ohio-state.edu/~pogge/Lectures/vistas97.html
686543
From the Wiki,\n\n"In about 5 billion years, the Sun will evolve into a red giant and then a white dwarf, creating a planetary nebula in the process."\n\nHumans will probably be long dead before then or will have moved on.  In a few billion years, the sun will get too hot for Earth to sustain life, but it'll be a while before it finally "blows up."  More accurately, it will actually implode and slowly become an inert mass.
728755
The Sun's current age, determined using computer models of stellar evolution and nucleocosmochronology, is thought to be about 4.57 billion years.[4]\n\nThe 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.\n\nThe Sun does not have enough mass to explode as a supernova. Instead, in 4-5 billion years, it will enter a red giant phase, its outer layers expanding as the hydrogen fuel in the core is consumed and the core contracts and heats up. Helium fusion will begin when the core temperature reaches about 3×108 K. While it is likely that the expansion of the outer layers of the Sun will reach the current position of Earth's orbit, recent research suggests that mass lost from the Sun earlier in its red giant phase will cause the Earth's orbit to move further out, preventing it from being engulfed. However, Earth's water and most of the atmosphere will be boiled away.\n\nFollowing the red giant phase, intense thermal pulsations will cause the Sun to throw off its outer layers, forming a planetary nebula. The only object that remains after the outer layers are ejected is the extremely hot stellar core, which will slowly cool and fade as a white dwarf over many billions of years. This stellar evolution scenario is typical of low- to medium-mass stars.[5][6]
214368
I'm going to focus on the word "producing" here.  The sun produces heat and light through thermonuclear reactions in its core.  If those reactions were to stop tomorrow, it would take hundreds of thousands of years for us to find out.  Maybe scientists who study the sun would know sooner.  Energy that is produced in the core has to collide with an immense number of particles on its way to the surface -- so many particles that it takes about one million years for this light to make it to the surface.\n\nEven if the reactions that power the sun stopped tomorrow, it would go on shining for roughly a million years.  No one in our lifetime, or for many generations to come, would be the wiser.
82704
who needs the water cycle with out the sun. all living things would die without the sun.
390316
The sun is a star. When it becomes a red giant the earth will be vaporized. thats a few billion years off but it will happen. So yes it does.
892212
Around 4 billion years old.