The research results of astrophysicist Brownlee and paleontologist Ward of Yale University in the United States show that the life span of the earth is about100-1200 million years, and from appearance to disappearance, the life span of the earth is about100 million years. Scientists point out that the earth, as the most ideal "refuge" for animals, plants and other creatures, has less than 500 million years left in its mission. By then, the earth will return to its original appearance, and only bacteria and single-celled microorganisms can drag out an ignoble existence. Eventually, the earth will be annihilated by the explosion of the sun.
Scientists have come to the conclusion that the sun will not last forever, so the earth will not last forever. For life on earth, 654.38+0 billion years is a life cycle, and it should be the same on other planets. Life on earth has gone through half of its course. Scientists compare the history of the earth 1200 million years to 1 2 hours, so life begins at1in the morning, oxygen appears in the atmosphere at 2: 00+05, and animals and plants appear at 4: 00+05. Man's present position is 4: 30, 5: 00 is the end of life, 8: 00 is when the ocean begins to evaporate, and at noon.
Sophia, a solar physicist at Yale University, added that life on earth depends on the sun to survive. According to observation, the heat generated by solar combustion has increased by 30% compared with its initial stage. This change has a great influence on the temperature of other planets except the earth. The earth has a good "protective umbrella", which is the atmosphere composed of carbon dioxide and other greenhouse gases. The gas in the atmosphere changes synchronously with the sun. When the sun is in the initial warm state, the gas in the earth's atmosphere remains stable, and after the sun's luminescence and heating intensify, the carbon dioxide in the atmosphere is destroyed and scattered to the earth's surface to form carbonate. Due to the reduction of carbon dioxide in the atmosphere, the temperature of the earth is relatively stable and balanced, but the exception that puzzles scientists is that the earth experienced an ice age of 4.5 billion years.
Scientists speculate that the phenomenon in the later period of the earth is that with the expansion of the sun, it burns hotter and hotter, and the heat radiates outward in the form of pulses, and the earth begins to "have a fever", and a large number of creatures flee to the ocean for refuge. Tens of millions of years later, the ocean evaporated, and finally the sun exploded, and the earth became its "sacrificial object" and was destroyed.