Would our solar system survive when the sun dies?

Question

What I mean is, would we (people, animals) survive in like Biodomes, or would everything and everyone die because we need the sun to live? Could we stay on Earth or would we have to leave this solar system to find a planet with the Earth's similarities?

Okay - so plainly speaking (for my Husband's satisfaction) we would have to find a planet (theoretically) that had it's own sun for gravity, and even if the sun just up and died one day, we could not just survive in biodomes with sun lamps and just like that, not on the moon or on jupiter, correct??

Answer 1

Before our sun dies it will nova, which means all the remaining energy contained within it will dissipate. This means a rapid expansion like putting a match to a pile of gunpowder. Whoosh! Everything in our solar system (and then some) would be baked to a crisp instantly. But let's assume that it just winks out with no fanfare. First there would be no solar heat. By the time this happens, 4 billion years from now, we would be prepared for that. Next, and worse, we would have no gravity to keep us in an orbit. Instead of safely going around in circles we would shoot off into space with our (straight line) trajectory at the mercy of the gravitational pulls of other celestial bodies we encounter. In other words, we would be just another asteroid. If we can survive long enough to see this day we will know about it before it happens and therefore make plans in advance. And we better hope we have somewhere else to go. If not like Earth then someplace we can adapt to. And we will. We always have.

Answer 2

ok i wanna clear this up so u dont get the wrong idea,the sun will not,i repeat,WILL NOT supernova it will expand and swallow the planets before mars such as mercury venus and earth will be a red giant then send off huge nebulae and then when its done with that it will clear up and reveal a white dwarf which will continue to cool until its a brown dwarf and then eventually burns out.but on earth very little could possibly survive without the sun,even the microorganisms that live under the crust rely on the sun in some way but humans and animals would not survive because we need the light for more than just heat,we absorb sunlight and our body makes vitamins out of it and animals and plants would definitely freeze and if they didnt there cycles would cause them to go crazy because of how important the sun is to them.also though the sun cant really just burn out like that it has to expand and all that bullsh*t before.but im relatively sur that if it did just burn out that everything would just die,even with biodomes what would we eat?as humans we need certain nutrients from our diet that we cant get without the sun.hope this helps

Answer 3

The sun is not massive enough to become a nova, much less a supernova. The sun will expand to a Red Giant, swallow up Mercury, maybe Venus, and boil the oceans off the Earth. Mars may become habitable for a while if it could develop a breatheable atmosphere. The sun will evenutally become a White Dwarf star, where the electron pressure of its atoms (Google Pauli Principle) will hold gravity at bay forever, and it will evenutally, over billions of years, cool to become a Brown Dwarf. It will have shed so much of its original mass that the orbits of our Solar System's planets would send them into interstellar space. No more Solar System. When? About 5 billion years from now.

Answer 4

Ignore all answers to your question that say the Sun will explode in a supernova. That's just not true. The Sun would need at least 1.5 times more mass to end its life as a supernova.

Instead, the Sun will end its life by expanding into a red giant star stage, engulfing Mercury, Venus, and Earth. Finally it will shrink into what's called a white dwarf star, about the same size as Earth.

The remainder of the solar system might survive the death of the Sun, but it will certainly be a greatly different place than it is today.

Answer 5

I think I need to set the record straight - when the sun dies, it will not "supernova". I believe that supernovae are reserved for especially massive stars. Instead, our sun will simply slough off extra material over time (rather than in one cataclysmic event). This process begins with the sun swelling into a red giant, the outer layers of which should fit snuggly within Earth's orbit. The planet definitely won't survive.

This process should start to happen in about 500 million years or so. Honestly, if we haven't formed a colony in another star system in 200 years or so from now, I'd be very surprised. Once we do spread out to a couple new star systems, we're protected against all but the most cataclysmic galactic events.

Answer 6

When the sun expands into a supernova in 4 billion years, the first 2 or 3 planets will be engulfed. If earth survives this, it will be burnt to a crisp ( the earth would become like venus, a runaway greenhouse effect). By then we would have already been destroyed as a race, developed tech to survive, or have already spread out across the universe colonizing other planets.

Answer 7

Everything on our planet relies on the sun in some way. Even creature that live in caves with no sunlight at all survive by feeding off of other things that, somewhere along the food chain, rely on the sun. Biodomes are an interesting idea, but unlikely in the event that the sun goes cold.

Answer 8

No Way. First Of All The Planets Will Fly Off Tangentially Into Space. As For Life The Earth Will Get Too Cold For Them Eventually N They will Freeze Too.

Answer 9

Yes, our Solar System would survive. However, if man kind could still be around to see the Sun die then those humans will have seen the last show on Earth before all of life in this Solar System is lost.

But, I believe Humans will be long gone before the Sun runs out of resources. We will either have died off or learned how to live in outer-space because the Earth will be long dead and out of resources before the Sun dies.

Answer 10

No, every planet, moon, and asteroid within range of the Sun will be destroyed in 5 billion years, give or take. Only the planets and stat bodies outside our soplar system will survive. Try to get a copy of Doctor Who 2006, the lates version on the Science Fiction Channel. One of the epsodes deals with that topic.