Question: how long can we survive without the sun?

Jason Mc Guire answered on 20 Nov 2019:

If the sun disappeared right now, I would say we would most of us would only survive minutes! If there was no sun the temperature would go to -273degC. The water would cool down alot slower, fish would survive alot longer or maybe even adapt especially in the deep ocean.
there are some geothermal energy (heat from inside the earth ) sources on earth which don’t rely on the Sun. Iceland has a few geothermal sources, maybe the people in Iceland would survive longer but all the plants would die and they would have no food source. Maybe it will be a new film in the future!