>>11040487Eight and change minutes after the sun is extinguished all light on Earth suddenly vanishes, the sky becomes black in a way we have literally never experienced before, the moon will just be a solid black circle in the sky blotting out some stars. It will be so dark that sight without fire or electric lights will be practically useless. Temperatures will drop precipitously over the next few hundred to few thousand years (extremely fast in geological time) until eventually Earth will be so cold that it's atmosphere will freeze out and fall to the ground as snow. The only places even remotely habitable will be places where active volcanism is taking place, where heat can easily be harvested directly from Earth's mantle, or in self-contained environments which are heated constantly by a power supply. Humans have at least a chance of surviving because there's so much heat in our system it would take decades if not centuries for it to bleed out to the point where the atmosphere begins to freeze, we'd probably have enough time to fast-track fusion or at least stockpile huge volumes of fissile material to power environment systems for the forseeable future, however heat isn't the major issue, it would be food. The entire large-plant based biosphere would be guaranteed dead within a matter of months, food crops long before that. The vast supermajority of the population reliant on crops or crop fed animals are doomed to die of starvation, whether or not the species could survive depends on whether or not enough members survive the initial die-off to uphold a technological standard sufficient to keep themselves from starving using indoor grow houses and from freezing by generating enough electricity to keep themselves warm.
>>11040688It takes light about 8 minutes to get to here from Sol, also assuming the sun's mass is still there just darkened by space magic then we'd still be in our proper orbit. If it vanished we would hurtle out at our orbital speed.
