what will happen to us if the Sun dies?

Question

As we all know the Sun is a star, not a planet , and by this conclusion we also know the sun -alike every star- will die, what happens to us then, is the End of the sun, the end of existence, what if Mars get blown up by the super nova the sun is becoming; where we have to go then? Are we doomed? i know it will take millions of years, but still , what happens when the sun becomes a black dwarf , no sun= no life= end of humanity? isn't that cruel? what do you people think about it, if we" would" get to Mars, still we don't have the energy of the sun , so we would die there also. Like does it scare you to know that in a couple of billions years , life will cease to exist?
it seems so unreal? how do you deal that problem, maybe we will be in another universe once an their a new sun will shine?

Answer 1

If the Sun were to "die" today, we'd die, just like all the other answers have said.

But the "death" of the Sun is still a few billion years in the future, so let's take a quick look at that.

Four million years ago, there weren't any "intelligent" species on this planet. "Man" as an intelligent species arrived around 100,000 years ago. "Man" became "civilized" about 10,000 years ago. "Man" stopped believing in spooks and goblins as the cause of everything that happens about 400 years ago, with the advent of modern science. "Man" became "technological" less than 200 years ago, though "Man" had some fairly sophisticated gadgets prior to that time. Man first flew (heavier than air) 104 years ago. "Man" invented nuclear power (and weapons) 60 years ago. "Man" first went into space 50 years ago. IPODs showed up in the last decade.

SO, going back 200 years to wooden sailing ships using hand-held timepieces (clocks/chronometers) to sail the world, has been transformed to space stations in orbit and gps satellites. Every time we encounter a problem now, we face it and fix it (mostly, there are still a lot that have some work left). But consider what we've done in 200 years, and how fast things are changing today. If the problem we face is a dying Sun in 3 billion years, we have 15 MILLION TIMES as long to figure out a solution as it has taken us to go from bobbing up and down in a wooden boat to sending satellites to Pluto for close-up pictures.

I feel reasonably confident that my descendants of 3 billion years from now, who will probably really have to strain to consider early "spacefaring" "Man" as an "intelligent" species, will have no problem moving every living soul and blade of grass to a more hospitable planet orbiting a star "in a galaxy far, far away" or coming up with a solution for which we don't have the mental ability to even conceive.

Answer 2

When The Sun Dies

Answer 3

A star of the Sun's mass doesn't go supernova. That's simply not possible. So when the sun "dies," in a billion years, it's going to go through a couple of changes:

1. When the sun runs out of Hydrogen in it's core it will initially dim and contract, without the pressure of hydrogen fusion equalizing the pressure of gravity.

2. The core of the star, now almost pure helium, will begin to collapse, getting denser and hotter, until two things happen. First, the hydrogen shell surrounding the core, (think the "outer core," or the "mantle,") will get hotter from proximity to the hot core, and will eventually ignite the hydrogen there. Because this source of outward-pushing photon pressure is further from the center of the star, this process will cause the star to expand immensely, forming a RED GIANT. This is the end of the earth, as we, along with Mercury, Venus, and perhaps Mars, (it's not clear if Mars will survive - in any case it's ATMOSPHERE will almost certainly be blown away,) will be engulfed. That's the end of the Earth, at least.

At the same time, and augmented by the second hydrogen-burning shell, the temperature and pressure in the helium core will continue to increase until the helium ignites to fuse into carbon.

3. Eventually, through fits and start, (helium flashes, a combination of helium fusion and electron degeneracy,) the helium fusion will become stable, and the star will continue to burn off all it's remaining helium into carbon and oxygen.

4. The sun doesn't have enough mass to force a third generation of fusion, (burning carbon,) so once the helium runs out, it will collapse into a white dwarf. There will be a great many cases of hydrogen and helium flashes, whereby hydrogen and helium from the outer layers settle on the surface of the hot white dwarf, and eventually ignite, briefly fusing on the surface, before being blasted off by the explosions. Once that runs out the white dwarf will sit there for a long time, slowly cooling, but by then the inner planets will all be long gone, and not able to witness the process.

Answer 4

If you don't believe in God then that should not frighten you.
You will be dead and gone long before that happens.
But if you do believe in God then you still have nothing to fear.
Because he made the sun in the first place and the moon and the other planets. When it gets to that point in a few billion years he may by then have a way for us to vacate this solar system and move us to a new one in a safe area of the Universe. When war is no more as the bible says will be in the future, there is nothing man cannot discover or learn.
By the time the Sun wears out we will be use to going from planet to planet and solar system to solar system.
shortly God will destroy the evildoers of this world and stop war. Mankind will live forever and with perfect minds be able to build star ships and explore the Universe.
(Psalm 37:9-11) For evildoers themselves will be cut off, But those hoping in Jehovah are the ones that will possess the earth. 10 And just a little while longer, and the wicked one will be no more; And you will certainly give attention to his place, and he will not be. 11 But the meek ones themselves will possess the earth, And they will indeed find their exquisite delight in the abundance of peace.

(Psalm 37:29) The righteous themselves will possess the earth, And they will reside forever upon it.

(Proverbs 2:21-22) 21 For the upright are the ones that will reside in the earth, and the blameless are the ones that will be left over in it. 22 As regards the wicked, they will be cut off from the very earth; and as for the treacherous, they will be torn away from it.

Answer 5

Life on earth will have been extinct for over three billion years when the sun goes into its red giant stage in 4 to 5 BY. The sun is steadily brightening and together with a silicate-CO2 cycle, life on earth will be mainly a memory sometime after 100MY. Some estimates do place the extinction at up to 1BY, but we will almost certainly not be around to see the death of the sun. The sun will not supernova, it is not massive enough for that to happen, but a red giant expansion is impressive enough. Earth will probably be destroyed in that expansion, but again figures are uncertain. And the end of the red giant stage, solar instability will be enough to destroy anyplace in the solar system our theoretical descendants could hide. There is a wonderful book called "the life and death of planet earth" which tells the fate of our planet in very readable detail.

Answer 6

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what will happen to us if the Sun dies?
As we all know the Sun is a star, not a planet , and by this conclusion we also know the sun -alike every star- will die, what happens to us then, is the End of the sun, the end of existence, what if Mars get blown up by the super nova the sun is becoming; where we have to go then? Are we doomed? i...

Answer 7

Truthfully, contrary to popular opinion on the post, the sun will not become a black hole. The sun is not a massive enough star to collapse in that manner. The following things however, are believed to be the scientific cenus on the death of our star.

First as the Hydrogen burns it produces Helium. As the sun starts it's downward cycle, these Helium particles in the sun will require it to burn much more hotter than it does now, and will force the sun to slowly but surely expand. There are two theories of what will happen as the sun expands, 1) the sun will start to burn each planet as it devours it as the expansion occurs. or 2) The Gravitational push that distances the planets away from the sun with continue as the sun starts to expand. Although that would save us from immediate death, it will start to evaporate all of the Earth water very quickly and although life could substain without light, because there are forms of life that survive with less of 1% of light, the basic building block is Hydrogen. No water, no life. Unfortunately I've gotten off subject.

The name the sun with obtain while it is burning off it's remaining helium is called The Red Giant, guess why. Once the sun depletes it's Helium, it will shrink exponentially into what's known as a white dwarf. It will burn very bright and hot but will be roughly the size of the earth. Without the suns rays to keep the earth warm, it will "Freeze". The sun will stay in this state until it finally burns out.

Seriously, the Homo sapien period of life on Earth will end eons before this event will occur, more than likely at our own hands.

Answer 8

If humankind still exists when the sun dies, they will have to be prepared for the sun's demise. All they need to figure is out how to transport billions of mankind to another planet or maybe even to another system that will support our needs. That is a simple statement, but by the time the sun is dying, there might be technology that can make this possible. The other problem might be that this technology is only accessible to the rich, which will also create other problems - who will be considered as deserving?

But I suppose by the time the sun dies, mankind might have been extinct *shudders* so there's no need to worry (!) about that.

Answer 9

The Earth and the other inner planets would be vaporized very quickly. Don't worry you won't feel a thing.

Seriously, the Sun is not even middle-aged yet and has billions of years to go in it's life cycle.

Eventually it will swell up and become a red giant - much larger but less dense than it is now. It may eventually reach a size about as big as the orbit of Mars, after which it will blow off its outer layers in what is called a Nova explosion, leaving a small white dense star called a white dwarf.

Answer 10

when the sun dies,earth will lose its sunlight and will not be able to see the moon. Earth will still have heat because of its core, but eventually it will die out too. Also, plants, as we all know, needs sunlight to survive so if the sun dies, plants dies and that means NO OXYGEN. in that case we humans have our technologies, such as life machines which breathes for you, and oxygen masks. but that's barley enough for one third of our populations, but the will be violence. As u can see we humans are very selfish and greedy, we will do whatever it is to survive, and it means killing others for supplies. but eventually we will run out of supplies, so we all die. but we never know what kind of technology there will be in 5 billion years, we may have found a new way of super sonic transportation that can go 10000 miles per second, which that means we can travel and discover new habitable planets to live on. scientist have discovered a planet called "Kepler 22b" named after a famous 18th century astronaut. maybe our species are able to survive after the suns death.