Lead
For a long time, humans believed that the Earth was the center of the universe, that other stars orbited the Earth, and that the Earth was the only planet capable of supporting life.
However, with the advancement of science and technology, people's understanding of the earth and the universe has continued to develop, and it was eventually discovered that the earth is not only not the center of the universe, but even just a speck of dust in the universe.
It is estimated that there are tens of billions of Earth-like planets in our galaxy alone, and it is very likely that life exists on alien planets.
Why do creatures on Earth explore the universe so deeply, but have such a shallow understanding of the universe?
Some people predict that around 2050, the population of the earth will exceed 10 billion, so humans need to find a new home and migrate to other planets.
So would humans really need to migrate to other planets because of overpopulation?
1. The idea that the earth is the center of the universe.
For a long time, people have believed that the earth is the center of the universe, the center of all life, and that other celestial bodies revolve around the earth.
However, the people who broke this notion appeared in Greece in the third century B.C., and he believed that the center of all things should be absolute, and that the law of the earth and the stars around the sun was contrary to this absolute, and therefore this idea was wrong.
However, ancient astronomical observations were tedious and difficult, so ancient astronomy was not strong enough to prove this hypothesis.
Until the Renaissance, with the progress of human society and technology, many scientists questioned the views set by antiquity, and astronomy was no exception.
The New Theory of the Celestial Bodies of 1543 can be said to be a revolutionary event in astronomy, and it is also the first progressive astronomical work in history to oppose geocentrism.
The New Theory of the Celestial Bodies was written by Copernicus, who believed that astronomy at that time had been in a state of stagnation because people at that time were mainly arguing whether the heavenly bodies were similar to the images in mythology, rather than studying their own properties.
Therefore, he sought to break the existing astronomical system by describing another possible system, so he proposed the heliocentric theory.
Copernicus's heliocentric theory was supported by Galileo, who himself was one of the few astronomers to have an astronomical instrument.
His heliocentric theory and Copernicus's heliocentric theory, although opposed by the church, were ultimately proven to be correct because they had actual phenomena as evidence.
Galileo's telescope allowed more people in Europe to see Jupiter, the most populous planet at the time, and realized that Jupiter, like the Earth, was a star moving around the sun.
At the same time, Galileo also discovered that Jupiter is a huge planet and has 4 moons, which proves that not only the Earth has moons, but other planets also have them, so the geocentric theory is a false view.
Later, Galileo also discovered that Saturn is also a planet orbiting the sun, and Saturn also has its own moons.
As a result, Copernicus's heliocentric theory caused great repercussions in the astronomical community at the time, and it was repeatedly proven correct in the days that followed.
Second, large-scale interstellar migration is unrealistic.
With the development of modern science and technology, human exploration of space has become more and more in-depth.
With the continuous expansion of astronomical telescopes at home and abroad, as well as the continuous launch of probes, mankind has discovered nearly 4,000 exoplanets.
Among these 4,000 exoplanets, there are a large number of terrestrial planets that are very similar to Earth, so it is possible that they could be potential second Earths and super-Earths.
However, although we have discovered that these planets may be new homes, these terrestrial planets are very far away, and humans are still not capable of reaching them.
Since the Soviet Union launched its first artificial satellite "Sputnik 1" in 1957, although human beings have continuously sent probes to the starry sky, none of them have been farther away from the solar system, that is, the nearest star next to the sun.
Therefore, if humans want to carry out large-scale interstellar migration, I am afraid that it will take hundreds or even thousands of years.
Not only that, even if humans launch probes, they may not be able to find life on planets like Earth, and even if they do find terrestrial planets with life, humans are not capable and qualified to occupy these planets.
Because before human beings left the solar system, they continued to send all kinds of garbage into space, and once human beings were allowed to control the entire universe, it was possible that more lives would be threatened.
At present, the purpose of most space exploration work is not to relocate, but to find new knowledge points and lay the foundation for human understanding of the universe.
At the current stage of human development, large-scale interstellar migration may never materialize.
Even if humans have the ability to reach other planets in the future, it is unlikely that there will be large-scale interstellar migration, because such large-scale migration is a huge project and may have an impact on the ecology of the alien planet.
3. The earth is rich in resources.
The earth's resources are very abundant, especially natural and biological resources, there are a large number of different species of animals and plants living on the earth, and at the same time there are various water and terrestrial ecosystems, which are very important for human beings.
At the same time, there are also a large number of mineral resources such as oil, natural gas and coal on the earth, which are the foundation of human industry.
However, although the earth's resources are very abundant, human beings are still constantly exploiting and consuming, and they have not yet made full use of the value of resources, which has produced many undesirable consequences.
Under the current technical conditions of human beings, there are still a large number of undeveloped open land on the earth, although these undeveloped lands may be barren mountains and mountains, but theoretically they can also be developed artificially.
At the same time, a large number of biological resources can also be further used to solve the problem of human survival.
With the continuous development of modern agriculture, the yield of many agricultural crops is gradually increasing, and the cultivation technology is also gradually improving, which has an important impact on the future food production capacity of human beings.
If we add in the possible future of genetic modification of crops and animals, the future food production capacity could be greatly increased, and it may be possible to feed billions more people.
In addition, the current human use of energy is mainly focused on fossil fuels such as oil and coal, but these resources are ultimately limited.
In order to solve the problem of oil and other resources, mankind can develop controlled nuclear fusion technology, or use the elemental resources of asteroids and other celestial bodies to replace oil, metals and other resources.
Fourth, possible future resource utilization.
Nuclear fusion is one of the most abundant energy sources at present, and the resources of hydrogen on the earth are very abundant, which can be used as fuel for nuclear fusion.
At the same time, the energy produced by the reaction of nuclear fusion is very huge, and the energy of a hydrogen bomb explosion can instantly complete the energy consumption of a city, so it can be said that nuclear fusion is one of the most abundant energy sources at present.
At present, there are many laboratories and companies around the world that are conducting research on nuclear fusion technology, although there is no human being able to achieve controlled nuclear fusion technology, but more and more experiments show that nuclear fusion technology is promising.
If humanity succeeds in achieving controlled nuclear fusion, there will be a steady supply of energy on Earth, and at the same time, human beings will be able to create thrusters that can be used to mine asteroids.
With the continuous development of aerospace technology, human beings have begun to try to enter space, and at present, human beings have mastered rocket technology, or jet technology, that can enter the earth's orbit.
Thrusters that travel further to the planets and asteroids of the solar system require more powerful engines, and nuclear fusion technology is arguably the most suitable type of thruster.
Asteroids are celestial bodies that accumulate debris from collisions between planets in the solar system and between the moon and planets, and they are usually rich in resources, including minerals, metals, gases, etc.
Under the current human conditions, the resources of many asteroids should be richer than the mineral resources on the earth.
At the same time, the resources of asteroids are almost undeveloped, which can be said to be pure resources, so as long as human beings have the ability to go to asteroid mining, they can solve the problem of shortage of energy and mineral resources on the earth.
Of course, if human beings want to go to asteroid mining, they must have advanced technology, and logistics must also be solved, which are all problems that human beings will face in the future.
Although many exoplanets have been discovered, and some may even be potential second Earth and super-Earth, these planets are still inaccessible to humans.
Therefore, large-scale interstellar migration to other planets may never be realized, but human beings must be vigilant against the problem of excessive consumption of resources and environmental damage in the process of continuous development of the earth, and we must work together to protect the earth.
Although human beings do not currently have the ability to immigrate to alien planets, with the continuous development of science and technology, human space exploration technology may have faster breakthroughs in the future.
Of course, there is also the possibility that humans can find a way to get to space quickly, such as through wormholes or faster-than-light travel.
In this case, humanity may revisit the issue of interstellar migration, and it is possible that other solutions will be developed that could change the direction of human civilization.
We still don't know what the future of the universe will look like, but it's being explored.
Perhaps in the future, not only will mankind discover more potentially habitable planets, but also other civilizations, which will have an important impact on human thought, and even have a profound impact on human society.
epilogue
Human exploration of the universe is still ongoing, and the development of science and technology is also driving human progress, so human beings may have more capabilities to explore space in the future.
Although large-scale interstellar migration may not be possible in the next few centuries, international cooperation and resource sharing are key factors in promoting the progress and prosperity of human civilization.