Whether there is life on Mars, but for those interested in astronomy, this will be the subject forever. We've been disappointed many times, but researchers are constantly proposing new theories to show that life may still be lurking somewhere on the Red Planet.
The idea that earth-like creatures might exist on Earth-like planets such as the Red Desert, Venus or Mars, was still widespread in the 19th century, and the idea captured the hearts of science fiction writers in particular, depicting in Burroughs's work the protagonists of the red Martian desert fighting monsters. In herbert Wells' work, he also depicts the role of preventing the Martians from invading Earth. But in this sense, the history of the investigation of Mars and Venus can be said to be a history that has disappointed us very much.
We know that Venus is like hell, its surface does not even grow bacteria, it is an unusually harsh environment. On the other hand, what experts see as Mars is also a barren desert, and even the famous canal is only a backward telescope from 200 years ago, leading us to the illusion. The surface of Mars is very similar to the harshest desert on Earth, for example, similar to the image of the Atagama Desert, the difference is that we can breathe in the Atagama Desert, but it is unlikely on the surface of Mars. Today, 95% of the atmosphere of Mars is carbon dioxide, the mass and density are very low, and the surface air pressure is very weak compared to earth.
On Mars, people lose consciousness immediately and live less than two minutes. Now the investigation of the surface of Mars is more detailed than the investigation of the seabed, so we can be sure that there is no complex life like Earth, but it is not as if it is a bacterium or the like, it is possible to exist, but we have to admit that Mars is still similar to Earth, there are clouds floating in the air, occasional snow, even blizzards, there will be frost on the surface, there will be changes in the four seasons on Mars, but the seasons of Mars are longer than those of The Earth, and the respective climates of the hemispheres are also very different.
The average temperature on Mars is very low, but on a good summer day, the temperature near the equator rises to a comfortable temperature of 20 degrees Celsius. According to the current research, the current Martian atmosphere has completely lost its former glory, the past atmosphere is much thicker than the present, Mars and Earth are almost twin-like, there are vast oceans and rivers on the surface and rain, Mars has been in this state between 15 and 2 billion years after its birth, the atmosphere on Mars has almost disappeared, the water on the surface has evaporated, and the reasons for the crust to stop changing are very complex, and there is no perfect explanation.
Although there is no clear answer, the probability is extremely high, but it is very difficult to judge how much time it takes for life to be born, because the benchmark for judgment can only be based on the experience of the earth, and we already know that there were already primary creatures on the earth 3 billion years ago.
However, according to the recent discoveries of scientists, as early as 4.28 billion years ago, when the earth was still infancy, there were already individuals, individuals, that is, less than 250 million years after the birth of the earth, and also when the earth was covered by oceans, that is to say, the birth of life does not take so much time, although all this is only a theory, but in the period when the oceans of Mars began to evaporate, it is likely that there were already multicellular organisms. Unfortunately, however, because unfortunately, they were not born on the 3rd planet of the solar system, but on the 4th planet, so their fate was decided.
The inhabitants of the underground. Mars still exists in areas much higher than the atmospheric pressure on the surface. This is the case, for example, in a very deep basin in the Greek plains. The Greek plains, when the fourth planet of the solar system still had oceans, must have resembled Earth's Challenger Abyss. Under the conditions of the Greek plains, although water evaporates above 10 degrees Celsius, it can exist in a liquid form for a short period of time, and the same can be observed in several other basins.
That is to say, there are still possible bacteria in these basins to inhabit. On the other hand, recent research has also shown that the most suitable shelter for creatures on Mars is the subsurface of this planet. In fact, no matter what size of the celestial body, the decline of radioactive elements will occur deep inside, the radiation will decompose the water, and the various conditions that meet the functions of the organism are all in place, only high-intensity radiation will bring bad effects to the organism, but the more complex the structure, the longer the life of the organism, the more vulnerable the organism.
For example, insects and rodents, etc., in some forbidden areas can be free and unimpeded, but the reason why humans will get sick when exposed to X-rays is this, there are also deep trenches on the earth, where the process caused by the heat generated by the earth's interior and the radioactive decomposition of water supports 1 billion years of life activity, there is a similar system on Mars, before reaching the depths of the earth's crust, life continues to move deeper, if there is an underground lake somewhere on Mars, It is now also possible to retain it in its most primitive form.
Such a hypothesis has been around for a long time, but it's actually only recent to test it using Martian rocks. There was a rock that fell from the sky as a gift, a meteorite that fell from the surface of Mars to the earth, and after comparing the survey data obtained from the meteorite with the data obtained by the Mars explorer, the result was unexpected, and there were many shelters on Mars, where sulfates and hydrogen gas could be the best bait for bacteria.
Why are Martian life forms so important to us? With the construction of large bases and laboratories on Mars, the mystery of life on Mars will be solved, and the hypothesis of life inhabiting the ground will be true or false, and it will be known at that time. Even if it is now impossible to use the most advanced Mars rover to investigate the whole of Mars, the possibility of investigating the fourth planet of the solar system in a realistic way is probably still very low.
In any case, if we can find any trace of living things that are alive and not fossilized, it will be a great discovery If the last traces of creatures that once appeared on Mars disappeared just millions of years ago, that is, geologically recent, how remorseful, can't we humans evolve earlier?
The journey of life in the solar system is by no means meaningless, the origin of life is the same as the history of the earth as a whole, it is now surrounded by multiple mysteries, but if primitive bacteria can be found on Earth, Mars, or Titans, or similar organisms, it will provide more clues to the process of exploring our earliest history.
But now with the development of the times, it is very likely that in the near future, the mystery of this universe will be completely solved.