Why is there so much liquid water on Earth, but almost no liquid water on Mars?

Life originated in water, so what is responsible for 71% of the earth's water? Mars and the Earth can almost be said to be the solar system.

Why is it that the Earth is full of life and Mars is so empty when their rotation, revolution period, and orbit are almost the same distance from the Sun? Where does all this water on Earth come from? The water on Mars is going again?

1. The water content of the Earth and Mars

The oceans cover the largest area on Earth, covering an area of up to 100 million square kilometers.

With an average water depth of nearly 4,000 meters, the entire earth contains nearly 1.4 billion cubic kilometers of water. If you look at the Earth from outer space, the whole Earth is like a "Mercury" with a huge water content.

The presence of water is a variety of organic or inorganic chemical reactions.

It provides solvents and energy, further paving the way for the generation of life. Liquid water does not exist on Mars, and water on Mars is either in the form of water molecules.

The morphology is stored in the surface soil of Mars, or in the form of solid ice at the poles of Mars. On the one hand, it is due to the extremely low temperature on the surface of Mars, and on the other hand, it is also due to the inconsistency between the environmental characteristics of Mars and the Earth itself.

Second, the water comes from **

There are many theories about where the water on Earth comes from. For example, when the earth itself was formed, the oxygen atoms produced combined with hydrogen atoms to form water molecules. Another version is from the solar wind.

It is estimated that about tons of water are produced each year by the action of the solar wind. In addition, there are meteorites, comets.

Water brought by such stars. The surface of Mars contains no more than these three forms of water**. But human observations now show that the water content on the surface of Mars is almost negligible compared to that of Earth.

3. Mars can't hold water

Mars is short of water, not because it has little water, but because Mars cannot retain water. One of the biggest reasons for this is the effect of gravity. The gravitational pull of Mars is only about 40% of that of Earth, and such a small gravitational pull cannot retain the water formed on the surface of Mars, so that even if rain is formed on the surface of Mars, the water will escape into space under the evaporation of the sun.

The second is that the atmosphere on Mars is so thin that it is impossible to form an atmospheric encirclement and lock in moisture.

To sum up, the form of water ** on the earth is not much different from the form of water ** on Mars, but because the distance between the two and the sun is small, it is a millimeter, a difference of thousands of miles, plus the atmosphere.

The difference in composition is huge, and the mass difference between the two planets is so great that there is a lot of liquid water on Earth, while there is almost no liquid water on Mars.

It is because the atmospheric environment of Earth and Mars is different. There are abundant oxygen and hydrogen molecules in the earth's atmosphere, which are important elements that make up water.

Because of the high temperature of Mars and the fact that the atmosphere is different from that of Earth, the surface water is evaporated, but there are traces of groundwater deep in the soil of Mars, so it means that Mars itself contains a lot of water.

Because my position on Mars is not the same in our solar system, it is closest to the sun, so it is understandable that there is no water on its surface.

Humanity has always been particularly interested in its dry planets, especially Mars. Because Mars is one of the planets in the solar system, and Mars is in good shape, scientists have explored Mars a lot. People have been thinking about whether there is life on Mars, and an important basis for the existence of life is whether there is liquid water, because a large part of the reason why human beings do not exist is because of liquid water.

According to relevant reports, there may be liquid water on Mars, so is this liquid water common to people?

Because the appearance of Mars is very different from the appearance of Earth, Mars does not have an atmospheric environment like Earth. Therefore, Mars may have existed in the ocean in the past, according to some ** and some Mars rover exploration, it can be seen that there are some valleys washed by flowing water and sand on the surface of Mars, or some tiny fossils containing water, but this can only show that Mars may have existed in water. However, the composition of this liquid water is very different from the composition of familiar water, and this liquid water cannot be drunk.

There is no way to determine whether life can exist in this liquid water. Therefore, the liquid water found on Mars is not common to people, and the water is composed of hydrogen and oxygen, which is easy to evaporate quickly under environmental conditions like Mars, so it is difficult to preserve.

Of course, the discovery of liquid water means that the possibility of life on Mars is increased, and water is a necessary environment for the existence of life. If there is water, then there is life. Moreover, people's exploration of Mars is still incomplete, so there is no way to determine the current situation.

However, with the launch of China's Mars rover, it is believed that more and more relevant data can be transmitted, and the understanding of Mars will be further expanded.

No, you don't see such water in your life, and you don't see such things often. Not the water to drink in life.

I don't think it's the water we are used to, because the liquid water on Mars is very different from the water we are used to.

I don't think it's the water we are used to, because liquid water on Mars is very pure.

It's not the water we're used to at all, and the water found on Mars is completely different from the water we find on Earth.

There are other celestial bodies in the solar system that have liquid water.

Scientific investigations have shown that in the solar system, the moons around Jupiter have found frozen water with a thickness of hundreds of kilometers, so some people speculate that there may be liquid water under the frozen water, which means that life may exist.

The atmosphere on Titan is mainly composed of nitrogen, but in the context of long-term low pressure and low temperatures, a fluid of liquid methane forms on the surface. The probes on Mars continue to send messages to Earth, and although no life has been found, there is liquid water under the ice, and maybe Qin Xing's dream of immigrating to Mars one day can really come true!

1. The appropriate distance between the sun and the ground ensures that the liquid water will not solidify or liquefy, but will be kept in the state of liquid water.

2. The mass and volume of the earth itself are moderate, so that the gravitational pull of the earth can preserve liquid water.

3. Of course, the abundant content of hydrogen and oxygen in the earth's interior is also one of the reasons why the earth contains liquid water and early silver.

4. One of the reasons why there is life on the earth is that there is liquid water on the earth. Other reasons are mainly the earth's suitable temperature, stable sunlight, safe cosmic environment, and suitable atmospheric environment, which make the earth an ordinary but special planet.

5. Liquid water includes surface water and groundwater. Groundwater is replenished by atmospheric precipitation, and surface water changes dramatically under the change of the environment.

Other planets in the solar system may also have liquid water, but it has not yet been proven.

Titan, for example, is very likely to have liquid water.

Titan (also known as Titan) is a moon orbiting Saturn, the largest of Saturn's moons and the second largest in the solar system. So far, several probes have tested this huge satellite.

Through exploration, scientists found that Titan has a dense atmosphere and numerous lakes made of liquid methane and ethane.

The latest data from the Cassini probe suggests that there may be a layer of liquid water beneath the frozen ground of Titan, Saturn's largest moon.

Based on Cassini's observations, scientists speculate that Titan's subterranean sea should be about 100 kilometers below the surface.

In addition, scientists believe that there may also be abundant liquid water under Mars.

Because the distance from the sun is very suitable, it is not too hot or too cold, and the atmosphere is stable, and the temperature difference between day and night and the temperature difference between the four seasons is small. Not like the other planets of the solar system, not as hot as Mercury, three or four. The water will evaporate quickly.

It's not as cold and fierce as Neptune, only minus four or five, the water is all condensed into ice, and it is buried deep in the ground, unable to be discovered and used by Risui Zhiga.

Determining that there is liquid water on Mars means that there is a necessary condition on the surface of Mars that could be the origin of life: liquid water. This discovery is of great significance for studying the origin of life on Mars and the possibility of exploring Mars.

There has been controversy about the existence of life on Mars. Scientists have extensively explored and studied Mars, but there is currently no direct evidence that there is life on Mars. However, many scientists believe that there may be a life-like wild song mechanism on Mars, which may be produced by the liquid water cycle.

As more explorations and studies continue to be carried out, scientists' understanding and awareness of the Martian environment is also deepening. In the future, we can continue to explore the surface and subsurface environment of Mars, looking for signs of life on Mars, and further verify or disprove this hypothesis.

At the same time, there is an underground frozen layer beneath the surface of Mars. In fact, according to current research, among the celestial bodies of the solar system, only the Sun and Venus are free of water (Venus is too hot and water molecules decompose). In 2015, NASA announced based on various research data that the streaks previously observed on certain craters on the Martian surface may be related to intermittent liquid water on the Martian surface.

That is, there may be liquid water on the surface of Mars. In fact, even though Mars is now dry and cold, scientists have found a terrain similar to a dry river on Mars, suggesting that there may have been stable liquid water on Mars in the past. The topography and seasonal changes of Mars are similar to those of Earth.

Some scientists believe that early Mars may have been well suited to the survival of life, and exploration of Mars is advancing. NASA has found liquid water on the surface of Mars, suggesting that life may still exist on Mars. At the same time, it also means that there may be a lot of water, even liquid water, on the surface of Mars, so the likelihood of finding life on Mars will increase.

In the future, when humans land on Mars to establish a dwelling, we will have direct access to many key resources from Mars. Liquid water on Mars also illustrates a problem.

If we mention the birth of life on Earth, does it also mean that there is life on Mars now? Seasonal liquid water may appear, and life on Mars may be just below the surface. Because the temperature difference on the surface of Mars varies too much, microorganisms cannot survive, but under the surface of Mars, there can be a very stable environment.

If there is liquid water at this time, the likelihood of life on Mars will increase significantly. Do not forget that Mars is still a celestial body and once had oceans of liquid water. We have found evidence on Mars that it has oceans.

The discovery of chance and curiosity is enough to show that Mars is very special, especially since there may still be life today. The environment beneath the surface of Mars can also shield against cosmic rays, which is conducive to the survival of life on Mars. Of course, life on Mars is not advanced, intelligent, and complex, but simple microbes.

Even the presence of fossils excites NASA. Curiosity was tasked with finding life on Mars, but it did not drill on Mars. NASA's next rover will drill Mars and drill underground to see if there is life.

According to the report, these narrow, black, finger-like marks only appear during the warmest season of Mars, but disappear during the rest of the year. Scientists say this seasonal situation occurs because salt lowers the freezing point of water.

However, the most important significance of this discovery is that water is the origin of life, so the discovery of flowing water on Mars has led scientists to further explore Mars to investigate whether there is any microbial life on Mars.

If there is flowing water on the surface of Mars, it also means that there is water underneath Mars. If it can finally be confirmed, then whether it is the search for extraterrestrial life or the migration of humans to Mars, there will be different repercussions.

This indicates that there is a high probability of life on Mars, and it also means that the possibility of human migration to Mars is greatly increased.

The flaws of Mars itself led to this result.

Mars is much smaller than Earth and has much less attraction to objects. This makes the water on the surface of Mars "en masse". The mass velocity of Mars, the second cosmic velocity (escape velocity), is about 3 times the average velocity of water vapor molecules.

However, the energy of water molecules is not average, and the speed of movement of a few water molecules can reach 5 times the average speed.

After all, only a few water molecules have such energy, so it is a slow process for the water on Mars to be evaporated, but after thousands of years, as long as this water does not turn into ice, it will definitely leave the atmosphere of the star.