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202 1 is not a quiet year for Mars, because three Mars probes from three countries will arrive or land on Mars this year. They are Perseverance of the United States, Tianwen No.1 of China and Hope of the United Arab Emirates, among which Perseverance has landed on Mars, Tianwen No.1 is still drawing a map around Mars, and Hope is an orbiter and will not land on Mars.

At present, the American rover Tenacity has landed on Mars, and China's "Tian Wen No.1" is surveying and mapping around Mars, preparing to land on Mars in April or May of 2002/KLOC-0. However, according to the news released by China National Space Administration on March 3 1, in the first three months of this year, Persistence, which has not landed on Mars, exchanged orbit data with China's Tianwen-1 for many times, and this request was first put forward by the United States.

According to NASA, they not only asked China for the orbital data of Tianwen-1, but also exchanged the orbital data of Mars probes with the European Space Agency and the United Arab Emirates Space Agency for fear that these probes from different countries and institutions would collide over Mars.

Because the space project is too expensive, the current key project "Al themis" of NASA, after more than ten years of research and development, will cost an average of $5 billion for a single launch in the future, which means that every launch failure means a waste of $5 billion. In the last century, Saturn V rocket that sent American astronauts to the moon was equivalent to an aircraft carrier at that time.

Mathematically speaking, the distribution density of detectors working around Mars orbit is much less than that of satellites in Earth orbit, so the probability of Mars detectors colliding with each other is very, very small. The sharing of probe orbit data led by NASA is more due to the kindness of the international space community. After all, at this stage, the overall space technology of mankind is not developed, far from reaching the level of developing space resources. Therefore, peaceful development and cooperation and mutual help and assistance when necessary are the current countries and regions.

According to the respective Mars exploration plans of China and the United States, the landing area of "Perseverance" is located in the Gezero crater of Mars, and the landing area of "Tian Wen-1" is located in the Utopia Plain in the northern hemisphere of Mars, which belongs to the Mars area that the United States has never explored on the spot. Therefore, NASA is eager for the terrain and surface data of Mars collected by our Tian Wen 1 in the future. No matter whether this data breaks through or not, it can help NASA land in this field in the future.

Generally speaking, although the Mars exploration data of different countries are not shared and made public, everyone's ultimate goal is the same, that is, to use unmanned detectors to find Mars resources as much as possible, send astronauts to Mars in a small scale in the future, and finally realize the Mars migration of all human species, and transfer a considerable number of people from the blue planet at their feet to the red planet 55 million kilometers away.

But after the massive migration to Mars, what will be the relationship between humans on earth and Mars?

The early development of Mars must be led by official institutions, and only a few people will be on Mars. They survived on Mars by the materials brought back from the Earth and the semi-annual earth supply, and carried out a series of scientific research activities, transforming the Martian environment on a small scale. However, after the private space capital represented by Musk arrived on Mars, they were more free. They will definitely engage in construction and development on Mars on a large scale.

When the number of human beings on Mars reaches a certain level, they can be self-sufficient on Mars without regular replenishment of cargo ships on Earth. After establishing families on Mars, these "Mars ancestors" and their next generation will gradually lose their sense of identity and belonging to the earth. Perhaps decades or hundreds of years later, the average communication delay of more than ten minutes between the earth and Mars will completely cut off the fetters of Martian human beings on the earth.

When Mars exists independently of the Earth, human civilizations on these two planets may develop the solar system in a new relationship. However, considering the belligerence of human race, in the future, Mars humans and earth humans may be alienated into two completely different civilizations and eventually go to war in the solar system.

If there may be a unified human government in the future earth world, the communication delay as short as tens of minutes and as long as decades will completely divide human civilization into different new civilizations after the massive migration of human civilization to other planets in the future.

Therefore, there can be no super civilization in the universe that can effectively control the area to millions or even billions of light years like science fiction works.