According to foreign media reports, Elon Musk, founder of us space exploration technology company SpaceX, hopes to send humans to Mars for colonization, so as to help humans become "multi planetary species" and continue human civilization. However, this may lead to a series of bad mutations in Martian born children, such as green skin, fragile bones and poor vision p> < p > < / P > < p > experts warn that the danger of colonizing Mars is not only a dangerous space journey spanning 225 million kilometers, but also the most cruel living conditions unimaginable. However, children of Martian settlers will experience the most intense mutations. Scott Solomon, a biologist at Rice University in the United States, said that due to the great changes in lifestyle, gravity and radiation, these mutations will occur faster than on earth p> < p > first, Mars is smaller than the earth, and its gravity is only 38% of that of the earth; Secondly, it also lacks a global magnetic field, a thick atmosphere and a protective ozone layer, which means that Mars is more vulnerable to space radiation, ultraviolet rays, charged particles from the sun and cosmic rays. Solomon wrote in his book "future humans" that this will lead to a higher probability of mutation in human DNA residing there p> < p > Solomon said that the skin color of settlers may change to help them cope with the effects of radiation. This will mean a deeper complexion, perhaps even a color we have never seen before. Solomon said, "maybe in the face of this high radiation, we may evolve a new skin pigment to help us cope with it. Maybe there will be people with green skin among us." < / P > < p > Solomon also believes that humans on Mars are more likely to be myopic, because they will only live in their own small community and no longer need to see far away. He cited cave fish living in deep ditches as an example. Because they no longer need vision, their eyes have lost their function. Other studies have also shown that children who stay indoors longer are more likely to be short-sighted p> < p > but this is not all variation. Solomon said humans also have symptoms of weak bones and muscle weakness. "Science fiction often portrays Martians or aliens from Mars as tall and thin," he wrote p> < p > another study by scientists Eneko axpe and Eric Appel claimed that half of astronauts going to Mars would suffer from osteoporosis. This condition makes bones fragile and more prone to fracture. In fact, NASA scientists are trying to figure out how to deal with space weightlessness and its impact on bone and muscle density p> < p > modern astronauts must exercise in space for about two hours a day, but this can not completely prevent the negative effects of weightlessness. Apel said: "many people are concerned about the technical challenge of landing on Mars or the psychological challenge of staying in the spacecraft for 1000 days, but they may not think of the impact on bones and muscles. Can people deal with these problems? Or will they become soft people like jelly when they get there?" < / P > < p > meanwhile, Solomon also believes that, Humans on this red planet will soon lose their immune system because they will live in a sterile environment. This is because settlers do not need a body that can protect against bacterial invasion. These changes may mean that humans are forced to separate from their Martian relatives, because physical contact such as sex may also cause fatal damage to the "little green man" p> < p > Solomon estimates that Martian children living in Musk colony may see signs of evolution in a generation or two. "Whether evolution is fast or slow depends on the advantage of having a mutation. If people living on Mars suddenly have a mutation that gives them a 50% survival advantage, it will be a huge advantage, right? It means that these individuals will transmit these genes much faster than they would without these genes," he said < / P > < p > in the message to musk and other billionaires keen to move to Mars, Jeff Bezos, founder of Amazon and the world's second richest man, issued a severe warning. He said, "do my friends want to move to Mars? I said do me a favor: first go to the top of Mount Everest for a year and see if you like it, because compared with Mars, it is a garden paradise." < / P > < p > musk talked about his dream of colonizing Mars very early. His vision is to build the first big city of mankind on this red planet around 2050. SpaceX's current goal is to send the first unmanned version of its giant starship to Mars in 2024. The billionaire still believes that the first humans will land on Mars by 2026. He hopes to transport about 1 million people to live on Mars in his lifetime. (small) < / P > < p >