Is Mars suitable for human habitation? Is there oxygen?

Some people say that Mars is the most suitable place for human habitation outside the earth. Is that really the case? Does Mars have the conditions for human survival? Is water and oxygen necessary for human survival? The following is answered by constellation knowledge. Let's take a look!

Q: Is Mars suitable for human habitation? A: Mars is not suitable for human habitation. In order to better understand Mars and prepare for our future immigrants, we humans have sent many probes to Mars for decades, including satellites in orbit, Mars probes and so on. With the Mars probe, we know more and more about Mars. Some time ago, there was also a very exciting news that scientists found liquid water on Mars. It took a lot of time and energy to find this liquid water on Mars. Scientists believe that Mars 2.5 billion years ago, like the Earth, had blue sky and white clouds, rivers, lakes, oceans and atmosphere. Mars is small in size and mass, and closer to the sun, which is the reason for Mars' gravity. Because Mars is affected by solar storms, its atmosphere is blown away by solar storms. Over time, its atmosphere is getting thinner and thinner. It is not as thick as our earth's atmosphere. The reason why the atmosphere is thin is that the seawater on the surface of Mars evaporates into the atmosphere and does not return to the ground. As time goes on, the water on the surface of Mars will gradually decrease.

Why did the Mars probe find traces of liquid water flowing on Mars, but could not find liquid water? What's going on here? In fact, there is no liquid water on the surface of Mars, but there is still liquid water under the ice sheet of Mars' north and south poles. When the summer of Mars comes and the sun shines directly on the north and south poles, its temperature will rise. The ice will melt into some liquid water and flow down this hillside to form a river. But it will soon be evaporated by high temperature. This is why our Mars probe can see traces of liquid water flowing, but it can't find liquid water, because it is mainly evaporation, mainly because it is difficult to form a thick atmosphere on Mars, and it is impossible to preserve liquid water without a thick atmosphere. Without liquid water, we can't immigrate to Mars.

Is there oxygen on Mars? There is oxygen on Mars, but the content is relatively small. There is also an atmosphere on Mars, which is somewhat similar to the atmosphere on Earth, but carbon dioxide occupies the main position in the Martian atmosphere, and others include nitrogen and argon. And there is less oxygen and water vapor.

The atmosphere of Mars is mainly composed of 1 and carbon dioxide. The most common component in the Martian atmosphere is carbon dioxide. In winter, the temperature of Mars is very low, and 25% of carbon dioxide in the air will form dry ice, which will sublimate into the atmosphere again in summer. This also makes the pressure in the polar regions of Mars change greatly.

2. Argon Mars also has its own uniqueness. Its argon content in the air is also very high, which is very different from other planets in the solar system. Argon is a unique gas, which will not precipitate like carbon dioxide, so it is relatively stable as a whole, of course, there will be subtle differences in different places over time.

3. Water Vapor There is still a small amount of water vapor in the atmosphere of Mars. If carbon dioxide rises in summer, there will be very little water vapor left. If the seasonal strong wind blows to the polar regions, it will be filled with a lot of water vapor and dust and so on.

4. Methane In addition, there is very little methane on Mars. Of course, it is not the first planet with methane. Titan mentioned earlier has methane.

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