The good thing is that there wouldn’t be much life to be threatened by the nuclear waste, but there probably also wouldn’t be any liquid water to cool the power system down. Maybe in some sort of base, for instance a dome with nuclear energy, humans could survive for some time. The idea that life could be sustained indefinitely without the sun is a silly dream. The gravity of Earth and the rest of the solar system would be affected and – with there being no constant energy supply from the sun – Earth would start drifting into space. If the sun was no more, then Earth would be drawn to a new centre of gravity. Planets, including Earth, would begin moving away from their usual paths and could collide with other gigantic bodies, leading to their destruction. Mahantesh Chikkadesai Bagalkot, Karnataka, Indiaĭestruction of planets would take place, because of the sudden loss of the sun’s gravitational pull. Earth’s surface air temperature has to be maintained in the vicinity of 15☌ on average for life to survive. I am more worried about cold than darkness. All of Earth would be in permanent darkness the air and oceans would retain warmth for some time, but all life would eventually freeze to via Twitter If the sun was still there, but just stopped emitting light and heat, we would stay in orbit. It depends what you mean by “disappeared”. If Earth were lucky enough to avoid getting caught up in these collisions and didn’t just fly off into space, it might start revolving around the new centre. Perhaps Jupiter, or a new giant planet formed after a collision of Jupiter with other objects that orbited the sun. 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. However, there would also be a fall in temperature that would more rapidly make survival difficult. If darkness was the only factor, it would take a while for most life to vanish from Earth. If the sun disappears suddenly, total darkness will be observed on Earth after 8 minutes – the time it take for its light to reach us. Some people could burn wood and coal for warmth, but without food we wouldn’t survive long. Some heat would filter through Earth’s crust, keeping it warmish for a time. Of course, Earth has a core of molten iron, and above that a mantle of molten rock. “Without sunshine there can be no photosynthesis. Depending on the season, we might get one last crop, or not! Our herbivores would soon chew their way through the last remaining vegetation and begin to starve. Without sunshine, there can be no photosynthesis. During the few minutes of near-darkness, the temperature fell by 4 to 5☌. The many birds flying about promptly became quiet as they settled down for the “night”. A nearby zebra herd became agitated as darkness came hours early with the sun still high in the sky.
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