what will happen when the sun is about to die?
144609
in about 4 billion years when the sun runs low on hydrogen then it will evolve into the next step of its life cycle. it will become a red giant like the star betelgeuse is already.\nwhen that happens planet earth will be completely destroyed.
1055543
when the world comes to an end?
13798
yes will the sun goes out or when god chooses.
354985
I think that the extiction of earth is true maybe.  \n\nAll stars "fade" or die away eventually.  Well, we all know the sun is a star.  (biggest star :)) \n\nThus, the sun (star) is going to eventually die away.  Humans can not live without enery source from the sun.  Thus that's why scientist say that the earth is going to be extincted or whatever.\n\nAnyway, that's from like 5th grade or something... i'm in 6th now...\n\nwww.diamondgemztone.piczo.com\n<>dia gemz\nsheri
759134
I'm afraid its "Goodnight Vienna" for us. As this is unlikely to happen for another 5 billion years or so though, there is a fair chance that we will have blown ourselves up or evolved into something a little more intelligent and cleared off elsewhere by the time it happens.\n\nAlthough the Sun uses up around 5 million tons of hydrogen every second, it still has enough left in its core to last for another 5 billion years or so. When it finally does run out of fuel, though, it will swell up to many times its present size and become what is known as a red giant. \n \nThe outer layers of the Sun will grow to swallow up the planets Mercury and Venus and they may even reach out as far as Earth. Way before the Earth is swallowed the surface of our planet will be scorched, its oceans boiled dry and most of the atmosphere will be stripped away.\n\nAs a red giant, the Sun might be able to exist for a few more million years. During this time it will shed matter quite quickly. The solar wind will strengthen to a solar gale. Finally, the Sun may cast off most of its outer layers as a bright shell of gas called a planetary nebula.\n\nAll that will be left behind is a very hot, dense core. The Sun, in fact, will have become a white dwarf - a star no bigger than the Earth. Gradually, over many millions of years, even this small star will cool. The Sun will end its days quietly as a dimming ember in space.\n\nThe attached link shows a photo of a star similar to the Sun in its death throes.
604274
It takes light 8 minutes (plus or minus seconds) to travel from the Sun to the Earth. So if the sun 'Died' this second, it will take 8 minutes till we know about it, i.e. the lights go out and the heating is turned off.\n\nHopefully we will still have the stars and moon to merrily sooth us into our freezing tombs.
650330
Yes: the sun will rise...
19839
Brian is right, but I have to add a smart-ass remark that sun will burn up and go out in a few million years, but by then the humankind will either destroy itself, or find a way to move on to other stars.
470719
Well, the world will actually end. I think humans will eventaully just pollute the crap out of it and it will stop being able to support life. Then it will exist, like it's fellow planets in our solar system, as an unihabitable rock which will eventually be consumed when the Sun begins to swell.
174660
The sun will rise from west.
292425
Well, very interesting question I must say. Our Sun was formed about 4600 million years ago and will continue to give out energy for an equal period of time. So, the earth is safe for the next 4600 million years. Phew!!\n\nBut, if you want to know what will be the fate of our sun (or any star for that matter) after it enters the final stages of its life, then read on.....\n\n(1) The first phase will be THE RED-GIANT PHASE. In this phase, the fusion reactions in the core of the sun will stop and it will start shrinking, this will disturb the equilibrium of our sun and it will start expanding like crazy to re-adjust it. Its color will change to red & it will become very very VERY big!\n\n(2) Now, the second stage will be the WHITE DWARF STAGE. Here, the expanding outer shell will be removed eventually and the shrinking Helium core will shrink into an extremely dense ball of matter due to gravitation. The helium nuclei will start to fuse together to form Carbon nuclei & will release tremendous amount of energy in the process & the sun will start glowing white.\n\n(3) Ultimately, the helium fuel will burn out & the sun will fade into space as a dense lump of matter.\n\n\nBut, if we consider the case of a much bigger star (even bigger than our sun), we'll find more final stages. Those stages will be- \na) Supernova- exploding star\nb) Neutron star- After explosion\nc) Pulsar- A spinning neutron star\nd) Black hole- Formed by an indefinite contraction of a heavy neutron star.\n\n:) Hope you enjoyed all the info :)\nHave a nice day
899150
Barring one of these, http://www.livescience.com/technology/10ways_destroyearth.html in about 5 billion years the sun will have exhausted most of it's hydrogen and will swell up to a red giant, engulfing the earth. As our blackened, burned-out cinder of a planet orbits inside the sun, it will be plowing through solar material, and will gradually spiral into the core, where it will fly apart shortly before impact and be smashed into it's base elements with little fanfare.
279164
Our sun will never go supernova or form a black hole. It doesn't have enough mass for that. It will, however, become a red giant and eventually cool down as others here have pointed out.
99768
Sort of!  As the sun slowly runs out of (mostly hydrogen) fuel, it will expand into a red giant and it's radius will be greater than the current position of the Earth.  However, the Earth's orbit is currently projected to move farther out while this happens so our planet will not actually be engulfed by the sun.  It will, however, experience a very large temperature increase.
80050
the sun will become a red giant before it gets near death, it will actually expand and the planet earth will have been eaten up and incinerated well before the suns death . such is the life cycle of all stars.
322637
when we fall off the edge of the earth or we spin into the sun....take your choice
1076079
The sun will grow until it engulfs the Earth before it burns out.  And long before that, the temperature will get way too hot and evaporate all the water, and the planet will no longer be able to support life.