How long can human beings live on the earth at most? This is a problem worthy of our consideration and study. The earth is the home of human beings and the planet on which human beings live.
It’s hard for us to imagine how human beings would get along with themselves if the earth disappeared from the universe one day. With the continuous development of science and technology, scientists have been exploring the interplanetary migration.
Hawking, a famous physicist, once interviewed big think of the United States in 2010. He said that the earth will be destroyed in 200 years. If human beings want to survive, there is only one way – to immigrate to other planets.
So can humans live on the earth for 200 years at most? What an incredible statement!
Xiao Bian thinks that we can analyze and judge this problem from the following three aspects: natural factors, human factors and external factors.
There will be many natural disasters on the earth, such as earthquake, tsunami, volcanic eruption, flood and so on.
But it’s normal for human beings. These natural disasters happen every year all over the world.
In addition to these accidents, the most likely impact on human beings is the asteroid impact on the earth.
Asteroid impact on the earth is one of the four sudden disasters in the world, and there was an event of biological extinction caused by celestial body impact on the earth before human beings.
Asteroid impact is an uncertain factor, the earth is always facing the risk of asteroid impact.
On April 29 this year, an asteroid named 1998 or2 approached the earth, but fortunately, it passed the earth at a very safe distance and did not bring terrible disaster to the earth.
However, if the earth is really facing the earth, an asteroid with a diameter of 50 meters is enough to destroy a city. If it is a bigger asteroid, the earth will be destroyed.
According to scientists, at the current level of human science and technology, we can only destroy asteroids less than 100 meters in diameter, but it has not been practiced yet.
In addition to the asteroid impact on the earth, there is also the solar factor. We know that the sun has a life span, and how much the earth depends on the sun. We all know that once the sun “dies”, the earth will be destroyed, and human beings will not be spared.
With the continuous development of society, the number of population is also increasing, which leads to the conflicts between population and economy, society, resources and environment.
Moreover, human beings have seriously damaged the earth’s ecological environment. If we continue to do so without awareness of environmental protection, scientists speculate that human beings can only survive on the earth for less than 1000 years.
Moreover, with the global warming becoming more and more serious and the polar ice caps disappearing, the earth may become more and more unsuitable for human beings and other creatures.
The alien factor is actually the alien invasion of the earth. Although there is no evidence to prove the existence of alien civilization, this factor can not be ignored.
Since the big bang, the universe has existed for 13.8 billion years, while the earth has only existed for less than 4.6 billion years. The earth can breed life, and there may be signs of life in thousands of planets in the universe.
So if aliens exist, their technology level is not lower than ours. If they find the earth so beautiful and want to rob us, can humans resist?
This is also a question worth thinking about.
Xiaobian thinks that the earth is now scarred, so no matter what, interstellar migration must be a major event for future human beings.
What do you think of this? Welcome to comment area.
(pictures of the article are from the Internet)