There is no life in outer space, urgent! There will be a debate tomorrow

And there may be. In the past, we learned that life needs oxygen, sunlight, and the right amount of pressure. But we have found so many kinds of strange creatures in the deep sea, such as small shrimp and crabs next to the deep-sea volcano, don't they also live in places that seem to us to be very difficult, all the life that was said before must be wrong, it is very possible that there is life in outer space, and the universe is so big, the frequency of the stars in the Milky Way is like firecrackers.

Can you say that there is only one planet in the universe like Earth.

There must be, because the universe is so large, it stands to reason that there is a high probability that a planet suitable for living beings like the earth will exist. Even if there were no other Earths, it could not be denied that living things might survive in other environments.

According to the existing knowledge and scientific evidence, no, but the universe is too big and too unknown, so the possibility of no life cannot be completely ruled out. However, it is true that there are organisms that can survive in the universe, such as some bacteria on the earth.

Yes. Because when Apollo landed on the moon, he accidentally brought some bacteria to the moon! And survived for a while!

Yes. But it must be basically simple life, because the simplest life is easy to generate.

It doesn't make sense to say yes and no, because we shouldn't be jumping to conclusions about something we don't know at all.

It is possible to say that there is, the universe is so big, who knows if there will be other life in outer space? Even some bacteria on Earth have been shown to survive in outer space.

It is not necessarily wrong to say that there is none, the appearance of life itself is a very magical coincidence, and who can guarantee that such coincidences can appear again and again?

So, I don't think you've chosen the right topic for this debate, because neither side of the debate can come up with conclusive evidence to support their own point of view, so how can you judge whether you win or lose?

Yes, there must be, but I haven't found it, and you can refer to the explanation of the parallel universe in the encyclopedia.

There is certainly extraterrestrial life, but there are many reasons why he was not discovered.

The most important thing is related to probability.

There must be. We can't think narrowly of humanity.

After all, there is only a limit to what humans can explore.

Too much unknown. You can't deny it all at once.

Scientists came up with a Green Bank formula at the beginning of the last century, from which we can know the planets where such life exists.

1. This is the price that must be paid, it is undeniable.

2. This question, no matter how much space junk there is, it won't be as much as the rubble in Saturn's rings, right? Have you ever seen Saturn collide with his rings?

3. Change the earth's own weight? How to change?

4. The opponent's defense friend, you can trust our atmosphere so much, the substance that hurts life is coming, and the atmosphere can't stop the drops, so it's expected to wait for him passively, it's better to go out to understand him, and there may be a plan to deal with it.

5. According to the famous conjecture of the cosmological theory "Black Forest Law", once other cosmic civilizations are discovered, the best way to deal with them is to destroy them. That's true, but the reason for this is that when you find him and go to him, he may have developed to a very high level, so once you find him, you have to destroy it immediately. That is to say, when the aliens discover us and come back again, humanity has either been wiped out by itself, or has developed to the point where it is not afraid of aliens.

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 electromagnetic waves emitted by the nearest star of exactly the same type as the Sun would reach the Earth.

Light-year. 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 enough.

Light-year. 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.