what would happened if the sun burns out?

Answer 1

good night

Answer 2

Well, in the grand scheme of things, the Sun will get to a point where the hydrogen gas it is converting into helium will get into shorter and shorter supply. At that time the Sun will begin to change into a Red Giant. The evolution of the Sun into a Red Giant means that the Sun will expand and expand until it swallows all the planets in our solar system except probably Pluto. All this material will be drawn onto the central core of the Sun and melt everything into a massive ball of super heated material. All of this will add to the hydrogen available for burning
in the core of the Sun. And the Sun will eventually die down in its burning and cool off. I am not sure that I remember the time frame for this to occur, but I think I recall something like 20 billion to 40 billion years as a rough estimate for this to occur.

I would not look for this event in the immediate future because only some 5 percent of the available hydrogen has been used up in the last 10 billion years or so.

Answer 3

The sun is about 4.5 billion years old, and it has another 4 or 5 billion years of life left to go. In human terms, it's just turned 40. So, it's entirely possible that some of the nearby stars will throw a surprise birthday party for our sun sometime in the next million years, with black holes instead of black balloons and an "Over the Hill" banner about 100 light years long.

Our sun is a little on the puny side, galactically speaking. Don't feel bad for it though, because it makes up for this with it's sunny disposition and the fact that it will never explode as a supernova. Plus, at the end of it's life it gets to enter a red giant phase, swelling up like a big red balloon (but filled with superhot stellar plasma instead of room-temperature helium, so don't go breathing any of it in to try to make your voice sound funny). The sun's outer layers will expand as the hydrogen fuel in the core is consumed and the core contracts and heats up. At this point, the outer layers of the sun will probably reach the current position of Earth's orbit, baking our planet to a delicious golden brown. All our water will be boiled away, most of our atmosphere will be blown into space, and any remaining life on the planet will die with a glorious suntan.

Following the red giant phase, the Sun will throw off its outer layers, forming a planetary nebula. The only object that will remain after the outer layers are ejected is the extremely hot stellar core. It will be a white dwarf which will slowly cool and fade as over many billions of years, probably muttering to itself about how different the galaxy was back in it's day, and how planets respected a sun back then, dadgummit.

Answer 4

It won't, for billions of years. The next event in the sun's life will be when it burns the last of the hydrogen in its core, and turns into a red giant, some five billion years from now. Don't wait up.

Answer 5

The next thing the Sun will do is collapse and become a white dwarf. When that happens, the earth will be incinerated. Time is running out, they predict this will happen in only 5 million years!

Answer 6

Technically, the sun won't burn out. It will collapse on itself, then go Super Nova, destroying everything in our solar system.

Answer 7

for starters, we would lose our gravitational force, not immediately, but soon. After this, we would carreen into space on our present course. There would be almost total darkness (no moon and sun). Last of all, the cold that would soon ensue would kill us all. Sounds fun, doesn't it?

Answer 8

We would need to ask another question.

How many Gods does it take to change a sun?

Answer 9

There would be no energy source for the earth, we would freeze, the trees would not be able to produce oxygen and there would be no oxygen soon, so there would be no life on earth.

Answer 10

Then there wouldn't be morning there would be night every time and solar-ed powered things wouldn't be used anymore.

Answer 11

Our world would die and the galaxy would totally change. No heat=Ice