Mars is very close to the earth in all aspects. Why can’t humans live on Mars?

Suppose you are considering immigrating to Mars. Have you decided where to place your home? not yet? That’s okay, let me help you think about it. Let me tell you something important first. Before going to the red planet, you need to make the following preparations: super resistance to cold, loneliness and radiation; enough air and food for a lifetime; a spacecraft costing billions of dollars; a planet A strong heart that can abandon all; and water. Water is something you absolutely need. So, what kind of house do you need? A villa built in a maze like Noctis'? Or a secluded abode in Smiley Crater? Or a castle in the mountains of "Face of Mars"? Or a sea view room? Well, this last one is a bit difficult. Four billion years ago was the best time.

(Illustration: The Face of Mars - Cydonian looks like a huge human head looking up at the night sky. New photos of Mars later taken confirmed that "The Face of Mars" "It's nothing more than a Martian rock, and it's only the optical illusion of the shooting angle that forms the shape of a human face; Source: Wikipedia)

We are very sure that there were oceans, lakes, and rivers on Mars. Everything related to water. But over time, most of the water has frozen beneath the surface or evaporated into the universe. There may still be some water trapped beneath the periodically expanding and contracting carbon dioxide ice sheet. What would it look like if there was still water on the surface of Mars today? Of course, this depends on how much water resources there will be on the surface of Mars. Perhaps the situation is like this: the northern hemisphere with a relatively flat terrain and a lower average altitude will be a vast ocean, while the southern hemisphere, which is concentrated in volcanic craters, will mostly be at high altitudes. Altitude and dry conditions. The differences between the northern and southern hemispheres are truly bizarre, and none of us know why they are that way.

Characteristics such as the number of craters and increased volcanic activity in the northern hemisphere suggest that the southern hemisphere is older. Okay, but who knows? Maybe oceans will appear on Mars again in the future, but for now, Mars is essentially just a huge, dusty desert. In fact, Mars is very similar to deserts on Earth, and we can learn about Mars by studying deserts on Earth. For example, the formation and movement of sand dunes on Mars are similar to those on Earth, but the volume of Martian sand dunes is usually twice that of Earth's because Mars' gravity is only one-third that of Earth's. At the same time, Mars also has some characteristics that are different from the Earth. For example, "Tar" is a kind of roofless sand dune with a height of 15 meters. We still don't know the reason for their formation.

Perhaps you are thinking, "What kind of situation will we see on a planet full of deserts and the atmosphere is easily affected by the strength of the wind? Will it be a sandstorm?" This will be the largest sandstorm on the red planet. major meteorological disasters. Dust storms blow oxidized iron particles from the surface into the air, causing the entire planet to appear red. Combined with weaker gravity and a lack of moisture, dust storms can last for months and spread across the entire planet. So you still have to build the house as high as possible. Olympus Mons is the largest volcano in the solar system.

Even if you could breathe on Mars, you would definitely be suffocated when you stand on the 25-kilometer-high summit and enjoy the beautiful scenery. Maybe you don't like volcanoes? What about Mariner Canyon, the largest canyon in the solar system? "Mariner Canyon" is so big that you can't see the edge of the canyon from one end to the other.

At the same time, you can also enjoy a spectacular blue sunset in the red sky. It is precisely because the dust in the atmosphere absorbs most of the blue light, coupled with the scattering effect of the atmosphere on the sun's rays. , only then can we have such beautiful scenery. Are you excited and curious now? Or are you looking for opportunities? Don’t hesitate, head to Mars now.