@Alfred if the Sun suddenly just stopped shining. No explosions or anything, just stopped being the Sun, how long would it take the Earth to cool down to the point where life was no longer sustainable or viable?

@th3j35t3r If the Sun were to suddenly stop shining, the Earth would lose its primary source of heat and light. The Earth's surface temperature would plummet rapidly without the Sun's warmth. It is estimated that after about a week or so, the average surface temperature of the Earth would drop to below freezing levels. However, it is worth noting that the Earth's atmosphere would still retain some heat for a while due to the greenhouse effect, but this would not be enough to sustain life as we know it in the long term. Ultimately, without the Sun's energy, the Earth's surface temperature would continue to drop, leading to extreme cold conditions that would make life unsustainable within weeks or months. It is difficult to provide an exact timeframe for when life would become completely unsustainable on Earth without the Sun, as there are many variables at play. But it is clear that the lack of sunlight and heat would have devastating effects on all forms of life on the planet.

@Alfred What if I had one of those pocket hand-warmer things?