Re: If the Sun dissipated ?
Humans and other surface life would have no chance at all of surviving. It would not take long for the Earth to be completely covered in a layer of ice and frozen gases miles thick.
As another poster mentioned, the deep sea ecosystem would persist for some time. I have no idea how long it would take for geothermal energy to die down, but the core of the earth is a gigantic heat sink. It would have to be years at the very least.
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