How long would we survive if the Sun disappeared?
A relatively simple calculation would show that the Earth’s surface temperature would drop by a factor of two about every two months if the Sun were shut off. The current mean temperature of the Earth’s surface is about 300 Kelvin (K). This means in two months the temperature would drop to 150K, and 75K in four months.
Can humans live without the sun?
All plants would die and, eventually, all animals that rely on plants for food — including humans — would die, too. While some inventive humans might be able to survive on a Sun-less Earth for several days, months, or even years, life without the Sun would eventually prove to be impossible to maintain on Earth.
What would happen if the sun disappeared from the Solar System?
Since the sun is the centre of gravity in our solar system, its disappearance would result in temporary anarchy among the remaining bodies, and after a few collisions the system may find a new centre. Perhaps Jupiter, or a new giant planet formed after a collision of Jupiter with other objects that orbited the sun.
Can We feel the Sun’s disappearance before we see it?
Therefore, we would still see the sun in our sky eight minutes after it was gone. So, if the speed of light is a constant and the speed of gravity is instantaneous, then we would feel the sun’s disappearance before we saw it.
What would happen to life on Earth without the Sun?
While most life would be extinguished from our planet without the sun, these geothermal-loving organisms would continue to thrive for billions of years without a single care that the sun no longer existed. An icon in the shape of a lightning bolt.
What would happen to the Earth if we all disappeared?
After that, though, Earth still wouldn’t be snuffed out. Electricity would still work, and it would still take up to an hour for the light from our planets to be reflected back to Earth, so there would be a peaceful glow in the sky.