Question:

Can life exist on Earth if our Sun just died?

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I know there will be 7 minutes before the Sun's energy will dissappear and our planet would be without it's energy. I am sure the President of the US would be rushed into some underground area where he would be able to survive and so would other VIP officials.

So, could life exist on Earth if the Sun went out suddenly? Would technology save us? Or would everyone and everything perish in ten minutes after the Sun was extinguished?

How cold would it get ?

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15 ANSWERS


  1. When the Sun dies, the Earth's going with it!

    It gets bigger first and the heat will FRY our planet.


  2. yes it can but the temperature will go very low and there are some methos like producing huge fire  

    well this i think but yes the things we use to do it where sun was very  those things would stop

  3. Before the sun died, it would expand and destroy the Earth.

  4. The sun wont burn-up for 5billion years... By this time humans should have killed themselves off.  But if not then Earth will a very diffrent place. You could not go outside as the planet will be an anarctic type setting.  If humans were to exsist they would have to be in domes.   If the sun dies at 12:00am then humans would have till 12:15 to figure something out.  From 12:08 to 12:15 the global temp would drop 20 degrees a min.

  5. Eventually there won't be any energy sources left, since earth will only emit energy in space and won't get any energy from the sun. The temperature will drop dramatically, since earth will become (by approximation of course) a black body radiator. It's not easy to calculate how fast the earth will cool down, but I estimate it is a matter of weeks for the atmosphere to condensate.

  6. The earth would turn into a ball of frozen rock,all water would sublimate and disappear,the atmosphere would go and life would rapidly vanish.

  7. Not all life on Earth depends upon the Sun, so yes, life could still exist.  Some deep sea communities are ultimately based on resources from volcanic features termed black smokers.  Other organisms live deep below the surface of the Earth surviving from minerals in rocks and water.

    Less hardy organisms, such as US Presidents, would go extinct.  Their life is dependent upon the Sun which, apparently, shines out of their... Some part of the anatomy or other.

    Update

    <<Humans can exist after the sun dies....right?>>

    Try it and let me know.

  8. Yes, the presidient would live for a few months in some underground hideout, but there would be nothing and no one to govern.  He would soon die when hus supplies run out, long after the rest of us.  Nothing would survive very long, not even remotely.  There are deep sea creatures that do not require sunlight to live, but even they will die when the seas freeze.

  9. In order for life to survive we'de need heat and a source of food.

    unfortunately all food comes from the sun whether directly(plants) or indirectly(anything thats not a plant)

    We may be able to live off of what energy could be collected from fossil fuels, and perhaps wind energy, but we would only have wind as a renewable energy source, and if we could survive long enough to set up a power grid using only wind energy that could provide heat for us and lights to grow plants. maybe

    chances are we'd all die.

    **edit** i guess geothermal heating wouldn't be ruled out

  10. After some time (weeks-yars?) the temperature will have fallen to almost -273 degrees centigrade (absolute zero) and absolutely everything, including our atmophere will freeze solid.

    No chance of ANYTHING surviving in our (ex-)solar system.

  11. The Sun will expand and become a Big Red Giant Star before it dies. But this won't happen for another 7 billion years. This expansion itself will swallow the Earth. Forget freezing the earth will be burnt out of existence! But life would die out much before that because the Earth's Biosphere would be destroyed. Inanother Billion years the extra heat will start evaporating the earths water faster permanently losing Hydrogen to Space. In 3.5 billion years all the water would be gone and so would the life! Tidal interaction will also cause Earth to move into lower orbit with the Sun! So life has a maximum of 3.5 billion years anyway even if humans do manage to not kill everything and themselves before that!

  12. well take pluto which is in thousands of - degrees and that does recieve some sort of sun (not much at all) so im guessing earth would go the same

    and no we wouldnt survive even if the earth didnt go cold because plants need the sun for photosynthisis rabbits need plants to survive and basing that as a key factor would have a knock on effect on other animals which we need for survival cmon in that case then we would find organisms on mars

    the only way there could be survival was if it happened over period of time so maybe a species might adapt seeming cockroaches can stand nuclear bombs i wouldnt be suprised if they ruled earth isnt that odd?

  13. The Sun provides heat throughout the earth, inside and out. Without it, the Earth would be too cold to survive. So cold to the fact that technology would cease to work. No life can exist on Earth without the Sun. h**l, no life can exist on the Earth even if the Sun were a little bit farther away, or a little bit closer. The Earth is in what they call a "habital zone".

  14. you must be very interested about the earths ending

    well...

    The earths surface would be exactly as it would appear as if it was night.dark and what not.

    the difference would be that it would be extremely cold.the earths surface would probably be frozen within a few days or hours

    but you don't have to worry about that. not in a few million years..

  15. First, this question is strictly hypothetical, because the sun will not just go out.  It doesn't work like a light bulb. It's a nuclear reactor that makes hydrogen to helium.

    Life, yes...but not us or anything we recognize.  Life exists in the deeps of the ocean, far below the reach of any light.  While the planet would continue its regularly scheduled thermal output, by my uneducated estimation, it would become intolerably cold for us and we would die, as would most other life on the planet.  We wouldn't stand a chance, and not all the technology of our wildest dreams would save us for very long.   No, not even the President of the United States or any V.I.P. officials could survive...because without the sun, we have no heat, no light, no way to grow food.  Did you think about this question before you asked it?

    Even presuming we could, in a limited capacity and for a limited time, survive such an event.  We wouldn't discover it for 7 minutes after the catastrophe had occurred.  Based also on the wonderful job FEMA has done in the past, the population would be culled in the extreme.  Anyone who wasn't beneath the surface, in an insulated, artificially lit, artificially heated bunker would be dead in minutes.  There's your ten minute timer.

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