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Post Reply If the Sun went dark would all life on Earth eventually end?
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Posted 4/12/16
Yes
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Posted 4/12/16

lambofgenesis wrote:


52infinity wrote:

Photo synthisis would be impossible so plants couldn't produce oxygen meaning we'd all suffocate... So no, we'd all die...becuase I have to spell it out for some of you.


So glad you can spell photosynthesis. /sarcasm.


*shrugs*
Ronxz 
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Posted 4/12/16
Already been said but yes, we would be dead. Currently a lot of the tech billionaires are trying to build rockets and terraformation technology to get us off the planet because of such an event. Now, in another 50-100 years this may be a completely different answer given the rate of technological growth we have right now. But if it happened tomorrow we'd die off pretty quickly. I'd say the 'elite' would have shelter and survive for a while in underground bunkers but ultimately we'd face extinction .
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Posted 4/12/16
no. some humans would survive along with a few of our favorite animals and plants.

a self-sustaining fully contained city would quickly be built and expanded over time. using the latest technology in materials and nanotech, ect
it would be for them like suddenly being forced to live on an alien planet, indoors.

but this species would have no problem responding if we absolutely must...we make it happen. and the tech we have available to us now offers a lot of solutions

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Posted 4/12/16

JustineKo2 wrote:

How would life on Earth survive if the Sun suddenly went dark?
Are even our most advanced technologies dependent on the Sun in some form?
Surely millions will die but I think humans will waste too many resources trying to save many people rather than devising a solution to ensure survival over the long term.


everything would die
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29 / M / Rin Matsuoka
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Posted 4/12/16

52infinity wrote:


lambofgenesis wrote:


52infinity wrote:

Photo synthisis would be impossible so plants couldn't produce oxygen meaning we'd all suffocate... So no, we'd all die...becuase I have to spell it out for some of you.


So glad you can spell photosynthesis. /sarcasm.


*shrugs*


Posted 4/12/16
Yes, all life will die out....working it's way up from plants/photosynthetic organisms to primary consumers to secondary consumers to tertiary consumers.
DrNope 
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Posted 4/14/16

srlan23 wrote:

Yes. There would be no more life on earth. Vulcanos aren't enough to keep the oceans warm. It's likely that the earth was "frozen" once even though the sun was shining and even with the sun it wasn't for sure that the ice would melt again. Without the sun the ice would be extremely thick. The pressure would be extraordinary high therefore it's likely that the water underneath the ice wouldn't be liquid anymore. And even if you could still find liquid water, with all the changes the water wouldn't be the same as today. I doubt that any life form would be able to evolve that fast.


Salt water has lower freezing point than fresh water. Pressure also generates heat.... I'm say this, oceans' temperatures rely on many factors(currents, water salinity, density, volcanic activity, gravity), dependent and independent of the Sun's influence.
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Posted 4/14/16 , edited 4/14/16
I'd love to see if scientists could come up with a way to create a sort of microscopic artificial sun/star. Providing power to such a thing would be very difficult though, and it obviously is not economically feasible.
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Posted 4/14/16

DrNope wrote:


srlan23 wrote:

Yes. There would be no more life on earth. Vulcanos aren't enough to keep the oceans warm. It's likely that the earth was "frozen" once even though the sun was shining and even with the sun it wasn't for sure that the ice would melt again. Without the sun the ice would be extremely thick. The pressure would be extraordinary high therefore it's likely that the water underneath the ice wouldn't be liquid anymore. And even if you could still find liquid water, with all the changes the water wouldn't be the same as today. I doubt that any life form would be able to evolve that fast.


Salt water has lower freezing point than fresh water. Pressure also generates heat.... I'm say this, oceans' temperatures rely on many factors(currents, water salinity, density, volcanic activity, gravity), dependent and independent of the Sun's influence.
Also not to mention that water doesn't change states of matter simply depending on the pressure around it.

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Posted 4/15/16 , edited 4/15/16

JustineKo2 wrote:


DrNope wrote:


srlan23 wrote:

Yes. There would be no more life on earth. Vulcanos aren't enough to keep the oceans warm. It's likely that the earth was "frozen" once even though the sun was shining and even with the sun it wasn't for sure that the ice would melt again. Without the sun the ice would be extremely thick. The pressure would be extraordinary high therefore it's likely that the water underneath the ice wouldn't be liquid anymore. And even if you could still find liquid water, with all the changes the water wouldn't be the same as today. I doubt that any life form would be able to evolve that fast.


Salt water has lower freezing point than fresh water. Pressure also generates heat.... I'm say this, oceans' temperatures rely on many factors(currents, water salinity, density, volcanic activity, gravity), dependent and independent of the Sun's influence.
Also not to mention that water doesn't change states of matter simply depending on the pressure around it.



Water does change it's state depending on the pressure and the temperature. If the pressure is high enough you can find ice even when the temperature is actually too high for it but then it's not normal ice anymore, it has a different structure then ice on earth. Without the sun the temperature on earth would be 3K/-270°C (that's the temperature in space). That's almost aboslute zero. If the moon would be bigger then maybe life would have a chance (like on Europa) but I'm not sure if the gravity of the moon is enough. And then there's the problem that the earth isn't a water planet so not every part of the earth would be coverd in thick ice. It's possible that the earth cools down a lot faster then.


But I forgot something, the most obvious thing. Without the sun the solar system would change completely. If the sun suddenly disappears earth would just fly away, like every other planet (the planets are still pretty fast then). Earth would be a very lonley place then.
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Posted 4/15/16
I don't think death would be so quick as you all believe. roughly half of the earth's heat comes from radioactive decay below the earth's crust. So long as we have a molten core, we will not be in the situation that lets say mars faces, where there is neither an atmosphere or a molten core. The real killer would be the death of all plant life that depends on the sun, and that would cause a mass extinction event.

But not all life would end. microbial life would still be around. Bacteria can survive at the bottom of the sea, in glacers of antartica, around thermal vents, ect. I wonder how sea life would be affected. As I understand there is not as great a dependency on solar energy. But then there is the change in ocean currents, which changes heat distribution in the ocean. I wonder if sea life near the bottom would survive.

I had also heard what if we had time to plan for the event. If we did, I think the best bet for humanities survival would be the hypothesized blimp cities in venus's upper atmosphere.
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Posted 4/15/16

JustineKo2 wrote:

How would life on Earth survive if the Sun suddenly went dark?
Are even our most advanced technologies dependent on the Sun in some form?
Surely millions will die but I think humans will waste too many resources trying to save many people rather than devising a solution to ensure survival over the long term.


The problem is keeping the electricity running long enough because electrical equipment not properly made for harsh conditions will not fare too well in the cold. Once the electricity goes out...well, there goes your light and your UV lamps meaning any remaining crops will soon die, and eventually your rashions and wild game will run out too. Assuming you have a way to still heat and boil water so you don't die of dehydration, I'd imagine most of humanity would be dead in the first few months. Maybe a few stragglers such as the Inuit and other northern tribes that are better equipped for such conditions could survive with the right technology aiding them, but without the sun, people will go insane, make mistakes, and lose the will to live. Humanity will most likely be extinct in not even half a year. The only surviving species, I foresee, would be colder climate fish used to perpetual darkness, and even then they might run out of food and die.

TL;DR No sun = almost, if not everything dies except some bacteria
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Posted 4/15/16
Guys, we could still grow food using LAMPS. People do this, all you need is electricity.
So, all in all, we could survive underground, retaining what heat we could create - use various energy generation techniques.

But life would suck balls..... Major balls...

And if it suddenly happened I also wouldnt give us good odds :> We'd prob. all die. 99.9% of us.
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21 / M / A piece of land i...
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Posted 4/15/16
Mass extinction.
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