Is there extraterrestrial life beyond Earth?

According to the scientific explanation, the physical and chemical conditions of the earth are the most suitable for the emergence of life, and there must be many planets with such conditions, because the universe is too large.

The earth is in the middle of the solar system, the temperature is suitable for no extreme temperatures, and secondly, the atmosphere is stable and suitable for the survival of organisms, and an important advantage of the earth is the existence of liquid water. These main conditions are suitable for the survival of life, so to speak, suitable conditions promote the formation of life.

We have not found life on other known planets, but there are traces of activity, the transformation of the moon's landforms, and the surface of Mars. Although we do not find that life does not mean that it does not exist, we cannot see the air, but it does exist. Many scientists affirm that extraterrestrial life does not need to be repeated.

Maybe it's because we're too backward in technology, or maybe it's because other civilizations are too advanced.

Current exploration of other planets has the presence of water, which is a major element of life. But there is not necessarily life with water, and life does not necessarily have to have water according to science.

Other planets have life, but they are not the life forms we are familiar with.

I haven't seen it, and I don't dare to say it, but judging by meteorites and other external means, it should exist, but we can't find it with our current level of science and technology.

This kind of problem. Scientists can't solve it.,And ask netizens.。。。 I was just passing by

Categories: Education, Science, >> Science & Technology.

Problem description: Reason for naming Not too long and not too short

Analysis: Absolutely. But not easy to find.

Far from it. In our galaxy alone, there are more than 200 billion stars like the Sun. They carry countless planets.

It's hard to believe that there is nothing suitable for biological growth. And now it is found that the adaptability of life is far wider than originally recognized. Organisms have been found to be able to survive in an environment completely devoid of water.

Therefore, it can be assumed that there is life on not only other planets in the universe. And there should be no less.

That being said. But it's not easy to find them. Because celestial bodies are far away from each other.

There are only a handful of them that are tens of light-years away. Hundreds of thousands of light years at every turn. In this way, it takes twice as long to go back and forth with an airwave signal.

It also requires that there are intelligent beings on that planet and that technology is at least as advanced as we are today. Otherwise, no one will give you a signal back. This is much more demanding than the existence of life.

And in order to find a life without wisdom, I have to go to the field. As far as our current aircraft are concerned, flying there really doesn't know the year of the monkey. And it's impossible to send hundreds of millions of them for the census, right?

Send one or two, and the possibility of hitting a life is too small. So it's not easy to find them.

There are countless stars in the vast universe, and they may also be surrounded by planets, and astronomers have now discovered thousands of them. Some stars even have as many as eight planets, like the Sun. In this way, there may be stars in the universe with more planets than the Sun.

There are at least hundreds of billions of stars in the observable universe, and the number of planets may be even higher. There will always be planets that have an environment similar to Earth's, orbiting in the habitable zone of their star system, with liquid water on the surface, and they have the potential to give birth to life.

Is there any life other than Earth?

To date, no extraterrestrial life has been discovered on other celestial bodies other than Earth, whether in lower forms or in intelligence. However, according to scientific speculation, there is a high probability that extraterrestrial life will exist, because the cosmic environment allows the existence of life on earth, and it is entirely possible to allow extraterrestrial life to exist, but human beings have not yet been able to detect it.

There are countless stars in the vast universe, and they may also be surrounded by planets, and astronomers have now discovered thousands of them. Some stars even have as many as eight planets, like the Sun. In this way, there may be stars in the universe with more planets than the Sun.

There are at least hundreds of billions of stars in the observable universe, and the number of planets may be even higher. There will always be planets that have an environment similar to Earth's, orbiting in the habitable zone of their star system, with liquid water on the surface, and they have the potential to give birth to life.

Extended Materials. Astronomers speculate that on planets with completely different environments, completely different forms of life will be born. Life is possible in Titan, the solar system, and perhaps not on water, but on liquid methane.

In addition, life on Earth is carbon-based, and extraterrestrial life may use other elements as the basis for organic matter, such as silicon and germanium, which are in the same group as carbon. It is important to emphasize that life conceived on different planets may have very different forms, and they are most likely not humanoid.

Because the universe is so big, the current astronomical observation technology is not enough for us to directly study the planets outside the solar system, and we have only explored a very small part of the universe, so we have not yet found extraterrestrial life. But with large-aperture astronomical telescopes joining the search, we could discover extraterrestrial life in the next few decades.

Absolutely. There is life on Earth, why can't there be extraterrestrials!

And many scientists have also done experiments to try to kill bacteria on the earth, but they can't kill them completely. Without oxygen and water, some of the bacteria survived and began to mutate!

Yes, if you think about it, the earth is just a small grain of sand in the vast universe, and since there are earthlings, there will also be aliens. If you dare to be interested in UFO video clips, I will introduce you to **, which includes a lot of UFO videos from all over the world.

Although scientists believe that even if there are aliens, it is impossible to fly to Earth because of the huge distance between the planets, they do not deny the possibility of intelligent life in outer space.

Whether extraterrestrial beings exist.

UFOs exist in mysterious ways, and tens of millions of earthlings claim to have seen UFOs. Are these "witnesses" fantasists or **? Or is there something between a lie and a truth?

Is the answer on a planet in space, or is it from humanity's cult of mystery?

The first boom in UFO research in the world began with the most famous "Arnold event" in the history of UFO research. UFO is an English abbreviation that means "unidentified flying object", also known as "flying saucer" or "UFO", which refers to a moving flying object or astronomical spectacle that can be observed by the naked eye or radar, and which is currently unexplained by humans. People who are interested in UFOs not only speculate that this is from a civilization that is more advanced than the earth, but also explain this phenomenon with psychological inferences about the problems that modern people may face.

UFOs are described as: moving or circling rapidly; Silent, erratic, or unusually roaring when moving; Shapes such as saucers, cigars, sphericals, rings or ovals have been counted in more than 100 different forms.