Why is there a riverbed and no running water on Mars today?

Updated on science 2024-05-29
23 answers
  1. Anonymous users2024-02-11

    We have found traces of water flow on the moon and on Mars more than once, and there are traces of river beds, but there is no water scientists guess that the atmosphere has spread, and the water evaporated by the direct exposure of the sun, so there is no running water.

  2. Anonymous users2024-02-10

    Why does Mars have a riverbed but no flowing water, because the intensity of solar irradiation is much stronger than that of the earth, and when the earth is becoming more and more scarce in resources in the future, the current earth will slowly become the current Mars.

  3. Anonymous users2024-02-09

    Because a place like Mars does not have the attraction of the Earth, the Earth has gravity, so there is flowing water, so such a riverbed is actually very normal and a dynamic on Mars.

  4. Anonymous users2024-02-08

    Because this is the desire of human beings to further discover other planets after the successful landing on the moon, so the discovery of Mars, they are interested in Mars, and it is found that the regions at the poles of Mars have some solid resources.

  5. Anonymous users2024-02-07

    This can say that we did not observe the flow of water in a limited time, and it does not mean that there is no flow of water, and scientists have observed traces of water flow many times, which may just evaporate relatively quickly.

  6. Anonymous users2024-02-06

    Without water, living things can't survive. Whether a planet can give birth to life, the presence of water is very important. So, is there water on Mars?

    Year 1877, an astronomer in ItalyParelliTake advantage of Mars'sWhen perihelion conjunct the Earth, with a telescope to observe the condition of the surface of Mars. He found that there were many dark lines on the surface of Mars, some of which were long and wide, and they also connected the dark spots together, turning them into a large net covering the whole of Mars. Parelli's discovery attracted the attention of many astronomers, who knew little about Mars at the time, and it was the first time they had discovered such a situation on the surface of Mars.

    Some scientists believe that these dark lines may be mountains on Mars, others believe they are intertwined canyons, and others speculate that they may be rivers. However, at that time, the technological level of human beings was not very high, and there was no way to explore the details of these dark lines. Later, the human probe successfully reached Mars and also photographed the Martian situation one by one for scientists to study.

    In 1971, the American Mariner 9 sent back a lot of ** about the surface of Mars, and scientists thought that these dark lines on the surface may be traces left by the riverbed.

    Most of these riverbeds on Mars are located in the equatorial region, and although they have dried up, it can be inferred from the traces they left behind that there were rivers on Mars hundreds of millions of years ago. From this, we can also deduce that there was once life on Mars. Since there are rivers, it is likely that there are oceans, after all, the surface temperature of Mars is so low

    Although I don't know why the climate of Mars has become like this now, from the perspective of time, the era of Mars multiplication, the earth has just begun to form.

    The United States has put a lot of thought into the study of Mars, and there have been many probes launched by the light untilIn 2015At the time, the U.S. Aeronautics and Space Administration announced that their probe had been found on MarsRunning water。Three years later, AFP claimed that the United States had discovered it on MarsLiquid waterOne year later, the Curiosity rover found a saltwater lake on Mars.

    Since water has been found on Mars, it means that the possibility of life is very high, but until now, we have not been able to find real life.

  7. Anonymous users2024-02-05

    There is water on Mars, but the composition of water on Mars and water on the surface of the earth is different, and the critical value is also different.

  8. Anonymous users2024-02-04

    There is no water on Mars, so the climate on Mars is harsh and cannot lead to life.

  9. Anonymous users2024-02-03

    The riverbed on Mars is due to the existence of rivers there in ancient times, and the rivers dried up to form the riverbed, and Mars is a disaster that occurred in history that caused all the water to be lost, so there is no water on Mars.

  10. Anonymous users2024-02-02

    There are long rivers on Mars, whether it has water or not, at least they used to be a river with water, it is a river formed by water, this river is still relatively straight, like a fast-flowing water rushing straight, and it is not right, there are dozens of kilometers long Caoze River at the junction of Jinhu County and Hongze District, it was originally from Hongze Lake to Baima Lake, it is a naturally formed river, and later people added wei along the river shape, but it is zigzag, Jinhu Hongze is a plain without mountains, and the river on Mars is more straight than the river with more water on the earth, This may be done by manual grooming. From the perspective of Mars**, there are more large rivers on Mars than there are large rivers on Earth, and at least three rivers are larger than the largest rivers on Earth, how did so much water come to be? They are more concentrated, maybe these places used to be places with a lot of rainfall, and the rain on Mars in ancient times was more than the current rain on the earth to form a bigger river than the big rivers on the earth.

  11. Anonymous users2024-02-01

    Are there traces of water on Mars?

  12. Anonymous users2024-01-31

    Yes, there is.

    But it may also be a trace of weathering, and I still think that Mars once had water.

  13. Anonymous users2024-01-30

    Eun Eun is like a girl lower part.

  14. Anonymous users2024-01-29

    Mars is questioned again! Riverbed traces are not rivers, liquid water has never existed on Mars.

  15. Anonymous users2024-01-28

    There have been rivers on Mars before, and the water of the rivers changes with the seasonsLike most of the people on Mars, they are desert surfaces, but also sand dunes, there is no fixed water source, American astronauts found a small amount of water, than carbon dioxide in the atmosphere, particularly cold, sand and dust is also a lot, there will be sand and dust every year.

    Mars will disappear with the seasons even if there is water, such as Mars, which is different from the earth, their activities are very active, the surface is also in ancient times, some have craters and volcanoes, including the highest mountain of the sun, in addition, the unique terrain is also significantly different from the northern and southern hemispheres, such as the south is a particularly ancient highland, the north is the plain, when the water on the surface of Mars is absorbed into the Martian shell, Mars can not live in, Oxford University they found that there are also some opinions on the planet.

    The planet also determines whether there is life, until 3 billion, there is still water on the surface of Mars, which is similar to the earth, but now Mars is particularly dry out, in fact, Martians do not exist in science fiction, in 2015, scientists' Mars has two poles, there is already ice, and in the warm season, there are some mobile water scientists to support, there are some theoretical formations on the surface of Mars, and the black and narrow traces here only appear in the warmest season of Mars, But the other seasons disappear, and this happens because the salt lowers the water, but this is also a particularly significant discovery.

    Because water is the origin of life, if it is found that there is water on Mars, there will be some biological life in the next step, scientists are now thinking about how the water on Mars is formed, and what happened to the Martian magnetic field, it is also possible that part of the water is also sucked into space, if all the water is melted, its water can cover Mars, and it can also form an ocean of 222 meters, but it is a special pity, because the atmosphere in Mars is particularly thin, and it cannot stabilize the water will evaporate with the sun, That's why there is no water on Mars. If there is water on Mars, it will also mean that there are some creatures, in fact, the highest temperature on Mars is only about 35 degrees, in fact, people don't know if there was life before.

  16. Anonymous users2024-01-27

    Because Mars has no atmosphere, the water evaporates and escapes into space, so it doesn't retain water.

  17. Anonymous users2024-01-26

    Because the riverbed above Mars was formed by other causes, not by the impact of the river, there is not half a drop of water in it.

  18. Anonymous users2024-01-25

    Lop Nur also has some ancient riverbeds, but there is no flowing water either, and the reason is that the river is dry. Mars also had considerable reserves of water, but the mass of Mars was small, the atmosphere was very thin, and most of the water evaporated under the action of the solar wind.

    Many celestial bodies in the solar system have considerable reserves of water, but most of them are either solid water on the surface of the bodies, such as Enceladus.

    According to the analysis, the water reserves inside the graph are 7,000 times that of the Earth, but Saturn is a gaseous planet, although it is known that there are many water resources in the deep atmosphere of Saturn, but their specific form of existence is difficult to know. At present, the presence of water on Mars has been determined, and there are many traces of water flow on Mars, that is, ancient riverbed lakes, as well as sedimentary rock formations, pebbles and other material components that can only be formed under the action of liquid water, and there are still traces of seasonal flow until now, which may be caused by the summer water flow on Mars.

    Mars used to have considerable reserves of water, and Mars was not as cold as it is now, Mars also had geological activities at the beginning, and like Earth, volcanic eruptions and other processes will inject a large amount of carbon dioxide into the atmosphere, so that Mars can maintain more solar energy, and then make the surface of Mars have a higher temperature, and Martian water can exist in a liquid state. However, the low-quality activity of Mars stopped as the core cooled, and everything changed.

    The mass of Mars is relatively small, there is no geological activity to continuously erupt gas, the atmosphere of Mars escapes because of thermal movement, and it is getting thinner and thinner, and now the atmospheric density on the surface of Mars is only about one percent of that of the earth, and the ability to bind water has been weakened, the air pressure is reduced, the evaporation point of water is reduced, and it will evaporate under the amount of solar energy, and the core cooling geomagnetism has also disappeared, and the resistance to the solar wind has also decreased, and the solar wind continues to act on the surface material of Mars, and a large amount of evaporation, Evaporative endothermy and the ability of the Martian atmosphere to fix heat has decreased, and the surface of Mars has also cooled, and after the water on the surface has evaporated, there is still some water underground, which exists in a solid state in an environment with a maximum temperature of more than -20.

    The flowing water created the rivers, lakes and oceans on Mars, and now most of the water on Mars is lost, leaving only dry riverbeds and lakes. According to analysis, Mars originally had a vast ocean, but the average depth was only about 137 meters, and the deepest depth was only about 1,200 meters, and the amount of water resources could not be compared with that of Earth.

    In the past two years, scientists have also discovered a liquid lake on Mars, which contains a high concentration of salt water, but this lake can survive not only because it is a salt water lake, scientists analyze that there may be a magma pool that has been sealed for hundreds of thousands of years underground, and the continuous leakage of heat allows this lake to exist in a liquid state.

  19. Anonymous users2024-01-24

    Mars originally had a very considerable amount of water resources, but because Mars was born and has experienced many meteorite impacts, the atmosphere has eventually become thinner and thinner, and the water on the surface of Mars has been evaporated under the action of the solar wind.

  20. Anonymous users2024-01-23

    This scientist is also exploring, and it is also possible that the water on Mars has been evaporated dry by the sun.

  21. Anonymous users2024-01-22

    Because Mars used to have water and then disappeared, these riverbeds are left over from previous rivers.

  22. Anonymous users2024-01-21

    In our solar system, there is such a planet that emits a red starlight, in the vast universe, with our sun and silently running alone, this red planet is the Martian celestial body that we humans have long dreamed of exploring and understanding. WhenWhen scientists explored the surface of Mars according to the rover, they found that there are many traces of riverbed on the surface of Mars, so why are there traces of riverbed?

    In fact, there are some scientists in the scientific community who believe thatThese so-called riverbed topography may be artificially excavated canal areasSince no traces of water have been found, most scientists disagree with this view, but believe that these riverbed environments on Mars have nothing to do with the so-called canal terrain, and are all topographic environments that naturally exist after river erosion.

    On our earth, the topographical environment of such rivers is universally distributed in the area of every river in our world, and in the valley floor part of some rivers, the place where the river water often flows is called the riverbed zone; Therefore, the area of these riverbeds can be divided into the following types of riverbed structures according to the topography, including the riverbed zone of the straight river, the zone of the curved riverbed, the riverbed zone of the river type, or the wandering riverbed zone.

    In the modern period scientists have passed the results of the Mars rover's surveysIt has also been found that there are even some topography similar to islands and sandbars on Mars; In the topography of some of these riverbeds, the tributaries of some rivers are distributed in the direction of the downslope of the riverbed; Therefore, scientists believe that these riverbeds are mainly caused by the erosion of the Martian climate and wind.

    In general, I think that the traces of riverbeds on Mars are mainly due to the climate and erosion of Mars. The specific reasons still need to be explored by scientists to figure out.

  23. Anonymous users2024-01-20

    There are no traces of the riverbed on Mars at all, because some of the traces left by some of his collisions, we look like some traces of the riverbed, so it is all speculation, and it has not been confirmed at all.

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