Is there life on Mars, and why is there no life on Mars?

If we use the concept of human life, there is basically no life on Mars. Because the existence of life has high requirements for the environment such as star mass, temperature, humidity, and material elements.

No signs of life have been found on the surface of Mars, but there is abundant moisture in the Martian subsurface and life may have existed.

Life is everywhere, and scientific exploration believes that there is no life, and that is only a matter of science and technology.

According to current satellite explorations, there are traces of water on the surface of Mars, but no signs of life have been found.

No life has been found yet, but from the ruins, there seem to be signs of life.

There was life once there, just like the Earth is now.

At present, human beings have not discovered the existence of life on Mars, and it is being explored...

At present, there is a wood but it can only be said that it has not been observed so far.

Personally, I think there may be.

Yes, but it doesn't seem to have been discovered yet, and it may be found in the future.

There is no lack of air and the temperature difference between day and night is too great.

Stupid humans. The Martians are a blessing in disguise

Scientists have discovered "biofossil morphology" in Martian meteorites

Look at this specifically:

Time is answering, technology is waiting.

Although scientists have found evidence of liquid water on Mars, they cannot directly conclude that there is life on Mars. Liquid water on Mars may be due to groundwater, snowmelt, or other factors, but these water molecules are likely not able to support life in the Martian environment.

The temperature on the surface of Mars is very low, with a minimum of -133 and a maximum of 27. At such temperatures, it is difficult for liquid water to exist. In addition, the atmosphere of Mars is very thin, with carbon dioxide, a lack of oxygen and other gases needed for life.

Currently, there is no conclusive evidence of life on Mars. Despite this, scientists are still looking for microbes or simple life forms that may exist on Mars. They are working to search Mars for water, organic matter and other signs of life in the hope of finding more threads in future missions.

In conclusion, although we have found evidence of liquid water on Mars, it is not yet possible to determine whether there is life on Mars. Future research will continue to explore this mysterious world in an attempt to find more clues about life on Mars.

Liquid water is one of the necessary conditions for the existence of life, but the presence of liquid water alone does not guarantee the existence of life. There are many other conditions that are required for life to exist, such as the right temperature, the presence of nutrients, energy**, and so on.

The surface conditions of Mars are very harsh, with extremely low temperatures, a thin atmosphere, and intense radiation. These extreme environments are very detrimental to the survival of life. In addition, the composition of the atmosphere on Mars is not very suitable for the existence of life, carbon dioxide occupies most of the atmospheric composition, and oxygen is very small, which makes life not supported by enough oxygen.

Although scientists have discovered some organic molecules on Mars, these organic molecules are only the basic substances that make up life, and they also know that suitable environmental conditions are needed to dismantle and modify them to promote the further development of life.

At present, the possibility of life on Mars is an important topic in astrobiology, because it has many similarities with Earth and is our close neighbor. To date, however, no direct evidence has been found that there has been or is any life on Mars. According to research, in the ancient times of Mars, its surface environment had liquid water, which may have been suitable for the survival of microorganisms.

However, the existence of habitable conditions does not necessarily indicate the existence of life, and therefore does not prove the existence of life.

For the Earth, there is an underground ecosystem of inorganic trophic microorganisms on the Earth, in which the microorganisms obtain energy and survive by stripping the electrons from the surrounding molecules. Hydrogen is a good electron donor, which can provide energy for underground inorganic trophic microorganisms. According to a new study, such an underground microbial ecosystem may have existed on ancient Mars, because 4 billion years ago, there was enough hydrogen on Mars for underground microbes to thrive, so life may have existed.

Mars has spring, summer, autumn and winter, day and night, but due to the extremely poor heat conduction and heat storage capacity of Mars, the temperature difference between day and night in the four seasons is surprisingly large, the highest is 30, and the lowest is -222. Although Mars has an atmosphere, its atmospheric pressure is less than 1 of the Earth's atmospheric pressure; 95% of the atmosphere is carbon dioxide, as well as nitrogen and argon, as well as more than 30 kinds of trace gases, but oxygen is pitifully scarce and has become a rare gas. Water vapour in the atmosphere is even rarer, averaging 0 01 of the total atmosphere.

Although Mars has a "riverbed" with branches and veins, and a "seabed" that is 1,500 kilometers long and more than 60 kilometers wide, it has no water and does not have any conditions for life.

In addition, the results of space exploration in the solar system have proved that there are no signs of life on the moon, Mercury, Venus, Jupiter, Saturn, Uranus, and Neptune, and only our beautiful earth in the solar system has the conditions for the existence of life.

If there were organisms that could survive in carbon dioxide gas, there might be life on Mars.

It depends on how to define life, and life on earth certainly does not, and now science defines the scope of life too narrowly. There are many life forms that are different from the earth's form, they do not react with us, and we cannot perceive their existence, but the diversity of life is constantly being refreshed with the development of science, and the scope is becoming more and more extensive, and I believe that life in the universe will gradually be recognized by us.

Well, I don't know.

Probably not!

According to the environment of Mars, no life on Earth can survive.

I can't say, it's a life-like thing.

No signs of life have been found, at least yet.

Hello, that's you, right? I knew it was you.

I hope to raise your noble hand to help me adopt it, I really thank you!

Answer: Mars is lifeless.

Because it hasn't really been explored by humans yet, it's still lifeless for the time being, but you don't have to worry, there will be one in the future, because technology is constantly developing.

Let's say there was in the beginning.

In the beginning, there was water, this is not a hypothesis, there is water, there is life.

The original atmospheric composition was carbon dioxide and nitrogen (28), both of which were heavier.

The first life was anaerobe, the metabolite was methane, the molecular weight was only 12 + 4 = 16, if the planet was too small, it would not be able to catch it, so after n years, the carbon ran away, the hydrogen ran away, the water ran away, and the game was over.

Because the earth is large enough, in the anaerobic stage, the hydrocarbon cannot run away, and it continues to be recycled until photosynthetic cyanobacteria evolve, eat carbon dioxide and water, release oxygen, and synthesize energy (sugar).

What would happen if Mars also evolved cyanobacteria? Well, it's a bit difficult, after all, far from the sun, photosynthesis is weak, and it's much more difficult to get on the right track.

Or what about transplanting blue-green algae at some stage on Mars when there is still water? I don't know.

All of the above is blind, and no rigorous calculations have been made, such as what was the temperature of ancient Mars, what was the escape rate of methane. In fact, I just want to express my own opinion: a planet that is too small is probably difficult to give birth to life.

Of course, anything can be said now, only the Earth has life, all planets that are different from the Earth have no or no life, big constraints such as: stars (must be yellow dwarfs), moons (must have large moons), mass (about the same size as the Earth), habitable zones (not too close and not too far away).

This has to be investigated clearly to know, if there are microorganisms, it is also considered life, and it will take a few years to have an answer

It's because it's a little cold. So wear a warm astronaut. If, suppose, think of Mars as a refrigerator.

Then you're cold. After all, Mars is so dangerous. There are aliens.

You have to be careful. There are also sandstorms. It takes a month to scrape.

That's why there's no life on Mars.

Mars does not have the right conditions for life, such as oxygen, water, suitable temperature, etc.

The atmosphere of Mars contains the essential elements essential for the formation of life: carbon, hydrogen, oxygen, nitrogen and water vapor. According to American astronomers, there are two areas on Mars that are more water-rich.

The U.S. Mars rover confirmed that there is 10 to 15 times more water vapor in these two regions than in other places on Mars, and that many organisms on Earth are able to survive in such conditions. There is speculation that life is likely to exist in these two areas. It's a pity"Pirates"failed to land in both areas.

According to Xinhua News Agency, is there life on Mars? This is an issue that has been of great concern to the world for more than a century. When astronomers first began to observe Mars with astronomical telescopes, some people thought that the vertical and horizontal ravines on its surface were the ditches used by "Martians" to irrigate farmland.

But further study of Mars shows us a world that is dusty, extremely cold and dry, with excess radiation and a polar crown made mostly of solid carbon dioxide (dry ice). Contrary to initial thought, there is no life on Mars.

Although Mars is now so unsuitable for life, scientific research that continues to move forward has found that a long, long time ago, Mars may have been very humid and had rivers, and although the climate was not very warm, it was enough for life to thrive, even if it was just a microbe.

The question of whether there is life on Mars is still debated within the astronomical community. "There's no unanimity, there's a lot of disagreement," said Michael Carr, a planetary geologist with the U.S. Geological Survey who has been involved in almost every Mars exploration operation.

The density of the Martian atmosphere is only 1% of that of the Earth, it is very dry, the temperature is low, the average surface temperature is minus 55, water and carbon dioxide are easy to freeze, and some life on Earth can survive. At present, there is no life, scientists are exploring a certain area of Mars that allows humans to immigrate, due to the lack of density of the atmosphere, with the current science and technology, except for the Mars probe, human beings cannot survive, and there may be equipment used to resist temperature changes in the future, although it is closest to the earth, but its own conditions are limited, and there is no life.