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What will happen to the earth if the sun dies?

The slow death of the sun will kill off life on Earth, but it may also create habitable worlds in what’s currently the coldest reaches of the solar system. In roughly 5 billion years, the sun will run out of energy and drastically alter the solar system. Oceans will be baked dry. Entire planets will be consumed. And long-icy worlds will finally enjoy their day in the sun. Our star is powered by nuclear fusion, and it turns hydrogen into helium in a process that converts mass into energy. Once the fuel supply is gone, the sun will start growing dramatically. Its outer layers will expand until they engulf much of the solar system, as it becomes what astronomers call a red giant.   

Any humans left around might find refuge on Pluto and other distant dwarf planets out in the Kuiper Belt. A region past Neptune packed with icy space rocks. As our sun expands, these worlds will suddenly find themselves with the conditions necessary for the evolution of life. These are the delayed gratification habitable worlds says planetary scientist Alan Stern of the Southwest Research Institute. 

People sometimes call Venus  “Earth’s twin” because the neighboring worlds are so similar in size and composition.  

People sometimes call Venus “Earth’s twin” because the neighboring worlds are so similar in size and composition. But Venus’ hellish surface shares little in common with Earth’s Goldilocks-perfect conditions. As the sun expands, it will burn up Venus’ atmosphere. Astronomers Klaus Peter Schroder and Robert Connon Smith estimated that the sun will get so large that its outermost surface layers will reach about 108 million miles out, absorbing the planets Mercury, Venus, and Earth. The whole process of turning into a red giant will take about 5 million years. A relative blip in the sun’s lifetime. However, these are imaginary we should work to make Earth better for us. We must be careful of our ecosystem and planet. 


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