is it true that the sun after many years is going to cool down?

Answer 1

The sun as you may know, is a medium-sized yellow dwarf star. According to other studies done on the same kind of star, they live tens of billions of years; our sun supposedly has 5 billion or so years left until it burns out and dies. And, SOMETIMES when stars die, they supernova, or make a black hole. Black holes are so bright that our human eyes can't see them. So, when the sun dies and if it supernovas, our planet along with other objects in outer space will be 'sucked' in. If the sun is a rarer type of star and it does not supernova, eventually with no sun we will freeze until we die... all simple!!

Answer 2

Yes, in a sense. The sun will develop into a red dwarf in about 4.5 billion years as previously posted. This would mean that its core will become super hot - which will cause the Sun's size to expand. It is the outermost layer of the Sun that will actually become cooler but by the time it becomes a red dwarf and the outer layer cools, this would be no benefit to our planet because this expansion would either engulf the earth or push it into a larger orbit. Billions of years after that it will become a white, not black dwarf. It is not impossible for it to become one, it just take billions of years for white to become black and they don't exist yet - the universe is too young.

Answer 3

Yes.
In about 5 billion years the sun will expand into a red giant (I won't go into the reasons here). After a few million years or so as a red giant and it will start to pulse (asymptotic giant phase) and start to "puff" off its outer atmosphere. This will result in what we call a planetary nebula (like the Ring Nebula) of expanding gases energized by the sun, now shrunken to a white dwarf. White dwarfs don't fuse elements in their cores anymore (they have basically burned out) and only shine and emit heat due to the leftover energy that will slowly leak away. After a few billion years, that white dwarf will have cooled off to maybe the temperature of a warm oven.

Answer 4

The sun will either cool down, and implode or heat up and explode.
eitherway at some point, yes our sun will die.

But this is well beyound our generation, or even our kids, kids, kids, kids generation.

Im more worried of a rouge asteroid hitting earth, than the sun dieing.

Though at some point if we still exist on earth we will need to address the sun at some point.

imagine worlds going through this now, where the sun is going to implode or explode and they dont have as long as us to address it.. thats sad.


so many galaxies, yet we can see and understand so little.

Answer 5

in about 4.5 billion years it will run out of hydrogen. and it wont explode or engulf the earth. mercury and maybe venus wont be as lucky though. this is what will happen

in about 4.5 billion years it wont have anymore hydrogen to fuse into helium (thats how it makes heat and light). so it will start to collapse because of gravity. the pressure will get so great that the temperature will rise to about 45,000 degrees F. then it will start to fuse helium into carbon. when that happens it will grow again and it will get so huge that it will be out past the orbit of mercury, so that planets gone. it will be so hot and so close to earth that the oceans and lakes will vaporize and earth will basically be a burnt wasteland. then in more than 100 million years it will run out of helium. then it will attempt to fuse the carbon into things like magnesium and neon, but its not big enough so it wont be able to.

it will start to collapse. gravity would collapse it into a black hole but all of the electrons that were thrown off of the atoms in the suns plasma will repel and it will stabilze once its an object thats basically the size of a planet. then its called a white dwarf. in billions of years it will cool into a black dwarf.

Answer 6

I'll be very impressed if you happen to be alive when the sun burns out.

Answer 7

Yes...and as it does it will expand until it engulfs the earth!!! It is a few years down the road though!!!

Answer 8

yes it's true and in fact it already is. however the process is very slow and will take several billion years before it "burns out"