when is the sun gonna blow up and what going to heppen to the universe?

Question

i was just wondering when the sun was going to blow up i know im going to be dead when it happends but what happends does another sun form or does a black hole begin??? and what if there is no more earth then what?

Answer 1

Our best guess at the moment is that the sun will first swell up into a red giant, which will cook the Earth into a lifeless ball of rock. After a while, it will cool off and collapse back into a white dwarf, which is small and relatively dim. It will stay that way essentially forever, gradually getting colder.

Black holes form when a very massive sun reaches the end of it's nuclear fuel supply. However, our sun is much too small for that, so a white dwarf is what we'll get.

You don't have to worry--it will take roughly 5 billion years before any of this happens.

Answer 2

The sun won't blow up, its not massive enough.
But in about 4 billion years it will expand into a red giant. It will blow off a lot of its atmosphere in an increased solar wind (there is a solar wind now, but when it becomes a red giant the wind will be stronger).
The sun will pulsate a bit as a red giant, and each pulse will expel a little more of its mass. Eventually, when it finally shrinks down to a white dwarf it will have lost a total of about a third of its mass.
That will appear as a sphere of gas around the sun, lit up by the sunlight (it will look something like the Ring Nebula does right now).
Eventually (in about a trillion years), the white dwarf will cool down until it no longer shines.

Before that, Mercury and Venus will be gone - absorbed into the expanding sun's outer atmosphere.
Since the sun loses mass, the other planets will move further out from the sun, so the Earth will likely survive as a planet. But it will be baked and scorched - no life anywhere on it.

None of this will affect anything in the universe, except our own little solar system.
Remember - there are about 100 billion stars in our galaxy, and about 100 billion other galaxies in the universe (maybe more).
So one average G-type star and its average family of planets is a very small thing in the entire universe.

Answer 3

Well, in about a billion years, the Sun will expand to become a red giant and the Earth will be vapourised. But by then, if we're still around, we'll have mastered colonisation of intergalactic space. But if you want to know what will happen for the next 10^100 years or more, there's an article in Scientific American which was published in the 1980s. One author's name was Teplitz. I've forgotten the other. They describe how eventually the stars will lose their planets because of collisions with other stars, the stars will go out, all the galaxies will recede from each other until all of them that aren't gravitationally bound will be beyond the horizon of the universe,, black holes will all evaporate, and various other things. In 10^10^26 years, all matter will turn to iron by quantum tunnelling.

Answer 4

By the time the Sun expands and cooks the Earth, about 5billion years from now, humans will have been extinct for a very long time. It is likely that other intelligent lifeforms will have evolved and become extinct in that time. If there is still any intelligent life around it will have moved elsewhere long before the Earth is destroyed.

Our current Sun and the solar system formed less than 5 billion years ago from a spinning disc of gas and dust left by a previous star that exploded in a supernova. There could even have been a supernova before that one. Our Sun, however, is too small now to become another supernova.

Answer 5

The sun will not explode. It is not massive enough for that. Therefore, it will not become a black hole.

5,000,000,000 years from now (give or take a few), the sun will swell up and become a red giant. It will become so big that its diameter then will be the same as Earth's orbit now.
http://en.wikipedia.org/wiki/Image:Sun_Life.png

In the meantime, as the sun loses mass (because of all that energy that it is putting out: e = mc^2 and all that), our orbit will have grown a bit. Will we be far enough to avoid being engulfed? Hard to tell this far in advance.

Even if the Earth does survive, there will ba a massive ejection of gas from the sun's atmosphere (a planetary nebula) and this gas will travel much further out than Earth's orbit. That can't be very good.

Meanwhile, the "collision" between the Andromeda galaxy and our own Galaxy will have begun.
http://en.wikipedia.org/wiki/Andromeda-Milky_Way_collision

There is so much space between individual stars that actual collisions of star hitting another star are going to be very rare. However, tidal effects may cause some stars (and their associated planetary systems) to be ejected from their galaxy.

WIll our already crippled solar system be one of those to be kicked out? Stick around. It may get exciting.

Answer 6

Sun Blows Up

Answer 7

I can't remember all the facts, but here's what I do recall. The sun wont just 'blow up'. It will just expand greatly, swallowing up Mercury and Venus, but coming close enough to Earth to burn everything. It will stay like that for a loooooooooong time then shrink down into a white dwarf. No one knows what happens after that, if I remember right. It's too small to become a black hole.

Answer 8

Our Sun is not going to blow up, not in your lifetime, or anyone you may even DREAM of for the next several thousand millennia.
A star to supernova requires a minimum of 8 Solar masses, obviously 8 times the mass our Sun posesses.
Re- stating what others have said, our star will one day grow to become a red giant, eventually swelling to a size approaching the orbit of Mars.

Happy Thoughts... Think Happy Thoughts.

Answer 9

its predicted to be in the billions of years..
which is when all the hydrogen is used up..
at which point the sun's mass will collapse on itself
and start a new process of burning the helium..
which expand the sun past earth;s orbit.. aka red giant
earth gets toasted.. and possible mars too..
this wont last long.. hellion fusion is so unstable that it will
collapse again into nova and pretty much wipe out the rest of our solar system..

as far as the rest of the universe goes...
we might get a glass raised in cheers...
nice group those humans.. we will miss em

Answer 10

the sun is not the center of the universe, its not the heart of the universe. the universe will be fine, but not the earth.

LOL! you will be loooooong dead when that happen.