The debate on whether there is life beyond the earth will be based on scientific evidence

There is life outside the earth, and people believe that the reason for the existence of extraterrestrial life is: the number of areas in the universe suitable for life to survive is very large; The elements found on Earth and in the Wise Lead solar system, such as C, H, O, N, and other basic elements that make up life, are also found throughout the universe;

Organic compounding reactions can be carried out under many environmental conditions, and scientists have discovered ordinary organic molecules in dark interstellar clouds, which further supports the theory of the existence of extraterrestrial life.

Astronomers recently discovered that ribonucleic acid (RNA), an essential component of the floating sails, floats in the hot, compact nucleus of a large star-forming region of the Milky Way. It is possible for these molecules to form life-related matter on planets, which means that many corners of the universe are already sprinkled with the seeds of the evolution of life.

Despite the mysteries and nebulae, life in outer space is increasingly an exciting area of scientific exploration. This field is called space biology, astrobiology, or biological astronomy.

Yes, because there is water, and water is indispensable for life.

There are many conditions for the production of bai life, such as: the environment.

du, elemental zhi, etc., and there are very few star spheres that have a suitable environment for dao except for the earth, and the current power of human beings has not yet been discovered. Therefore, it cannot be absolutely inferred that there is life outside the earth.

According to the principle of anthropic, the Earth's position in the solar system is very special, a few kilometers closer to the sun will turn into a fireball, a few kilometers away will become an ice ball, the Earth's position seems to be a perfect fit, while the stars of other planets are far away from the planets (the Earth is fortunate to control the density and position in the Ultra Nebula), and it is impossible to derive life.

No matter what kind of civilization is generated) will greatly increase the entropy in the universe, and now the entropy in the universe is increasing slowly, and if there is life outside it, then the entropy will skyrocket almost infinitely.

PS: Actually, there is life beyond the earth.

No. Earth: The only planet with water on several planets in the solar system. As long as there is water, there will be life.

How many people in the desert can survive? At present, many people are in this question, once said that there are canals on Mars, so there is life and there are Martians. But this is just a mistake, it is just two symmetrical lines, which are translated as canals!!

So, I don't dare to say that the entire universe, at least the solar system, has no planets except the Earth. But the universe is huge, I wonder if there will be life on other planets?

Your teacher is either a feudal superstitious theist or a showman, and I will confirm that this kind of thing that scientists all over the world dare not say will confirm that it was definitely the brain that was kicked by alien life last night!

Rely on this is the easiest, there is no factual basis for the positive side, the counter-evidence method, if there is life, why is there no evidence? Of course, you're actually debating this issue, in fact, people think that there's life beyond the Earth, but it's about how you play.

Is there or how many celestial bodies like Earth are there in the universe. The organic molecules on Earth do not fly from outside the sky, but they are possessed by themselves, and substances such as water and oxygen, which are necessary for the existence of life, are also abundant in the embryo of the Earth. What is important, then, is the external conditions that cause the evolution of these organic matter, that is, the light and heat conditions from the sun, which are the external conditions that enable the evolution of the earth's organic matter into living matter.

In other words, because the earth has the two conditions of organic matter and solar light and heat, it also has the necessary conditions for the existence of life. In this way, we just need to explore whether there are planets and star systems in the universe like the Earth-Sun. According to research, there are about 1% of stars of the same type as the Sun in the Milky Way, and at least 10% of them have planets, that is, 100 million stars like the Sun have planets.

So among these 100 million planets, are there any planets that are completely consistent with the internal and external conditions of the Earth? In fact, there are countless galaxies like the Milky Way in the entire universe. According to the theory of probability, we can think that there must be celestial bodies in the universe that are the same or similar to the earth in addition to the earth, that is, there must be living planets like the earth in the universe, but we have not discovered each other.

What, then, is the best way to connect with each other in the vast universe? In terms of human wisdom and scientific and technological level, the best means is electromagnetic wave communication. Radio telescopes currently in use can receive very faint signals from space, but unfortunately, there is no indication that these signals carry information from advanced intelligent beings.

Another way is to compile symbols that represent the characteristics of the earth into "passwords" to make "earth business cards" and use electromagnetic waves to emit them into outer space. If aliens are about as intelligent as humans, they have the opportunity to receive and decipher the content of our signals, and then they send them to Earth. But even if electromagnetic waves are emitted by the nearest star of exactly the same type as the Sun, it would take light-years to reach Earth.

Suppose this star has planets, and there are highly intelligent life on the planets, and they receive signals and feedback information, and a round trip is light-years. Therefore, it is almost impossible for humans to meet them.

Is there only one life in the universe that exists on Earth? The characteristics of living matter on earth are organic matter with hydrocarbons as the main body, oxygen as the exchange material for metabolism, and water as the basic substance for the formation of life. After these conditions are met, at the right temperature, organisms can be formed.

If life could be formed from other substances, it would certainly not be in environmental conditions like Earth. But as long as they are living beings, they must also exchange matter and energy to maintain life activities.

All in all, theoretically, earthlings are not lonely, and there may be "aliens" in the universe. But in practice, so far, no life on other planets has been discovered, let alone "aliens" visiting Earth.

No need to debate, you go to NASA in the United States ** next solar observation **, zoom in, and you can see them ......