Is that Mars project really feasible? Is it true?/You don't say. What is the anger of technology now?

Technology is not guaranteed to attract the golden reality show.

Faced with the enthusiastic participation of the people, experts in the aerospace and astronomical circles agree that this plan is actually not reliable.

While expressing admiration for the courage of volunteers, Chu Yingzhi, an expert from Shanghai Institute of Aerospace Technology, pointed out that the difficulty of sending volunteers to Mars is unimaginable at present: "How much food, air and water do people have to eat in 8 to 10 months? I find it difficult. If humans could solve the reaction of controlled fusion of nuclear energy at that time, there might be a chance. " In addition to the carrying capacity of the spacecraft, human beings' ability to protect against cosmic rays during long-distance space travel and their ability to adapt to weightlessness are also insurmountable problems in just ten years: "In the early stage, Russia made a Mars 500 plan, and an adult man set off at the age of 30 and returned to Mars. His physiological state will become 80 years old, and the dose of cosmic radiation is very large. "

Pang Zhihao, an expert in space technology in China, also said: "With the existing technology, it will take at least 250 days to send a person to Mars one way. Long-term space flight will have a serious impact on human muscles, bones, heart and psychology. " Don't rush to Mars until these problems are completely solved.

The official website "Mars-1" project said that he was going to launch the Mars spacecraft with the upgraded Falcon 9 carrier rocket of Space Exploration Technology Company. However, Falcon 9 can only launch cargo spacecraft into low earth orbit, and the "upgraded version" has not yet appeared.

Professor Jiang, an expert in astronomy and history of science at Shanghai Jiao Tong University, asked, even if four people arrive safely on Mars, how can we create a recycling settlement environment on the red planet where liquid water has not been discovered, the atmospheric composition is mainly carbon dioxide, and the temperature is as low as MINUS 100 degrees Celsius?

Jiao Weixin, a professor at the School of Earth and Space Sciences in Peking University, pointed out that "the technology of building a space station on Mars is not mature enough". Even in the United States, where space technology is the most advanced, their heavy-duty launch vehicle technology has not reached the level of sending earth immigrants to live on Mars.

The "Mars 1" project claims that the necessary data in "Peace" and the International Space Station can provide experience for emigrating to Mars. However, the surface conditions of near-earth orbit and Mars are very different.

The project also said that the energy source of Martian immigrants mainly depends on solar energy. "When the dust on the solar panel affects the output power, the rover or immigrants will clean up the dust." However, the wind speed of sandstorm on Mars exceeds180m per second, while that of typhoon 12 on the earth is only 32.6m per second. Once the dust storm on Mars blows, it can last for more than three months.

"This matter is highly speculative. It is impossible to carry effective equipment to go there for construction. With the existing scientific common sense, it is obviously fatal. I think there is a greater possibility of miscarriage and it will not be launched at all. " Professor Jiang said to me.

"Mars immigration plan, whether it goes back or not, is it a serious scientific project or a business reality show that attracts gold by earning eyeballs?" Soste Zuo En, NASA official and head of Curiosity's flight program, accused the Mars immigration program of being irresponsible. "In a responsible attitude towards life, scientists should first ensure that this is a free round trip. If you can't adapt to the survival of Mars, at least volunteers should have the right to ask for a return. "

"This is a naked business show. If they can get a lot of advertisements through TV programs, they may make money. " Louis Friedman, who has worked in NASA's Jet Propulsion Laboratory for many years, said: "But I would be surprised if I could send people to settle on Mars with this money. Moreover, how long immigrants on Mars can live seems to be determined by how much money they can raise. "

In addition, whether the qualification of the sponsoring institution and the low-threshold sea election can produce excellent pathfinders has also been questioned. Interstellar travel requires astronauts' physical and mental qualities, knowledge and skills. Experts believe that "landing on Mars is a narrow escape. As long as people are 18 years old, as long as there is no chronic disease, the registration requirements are low, which is not serious enough. "

The picture shows the traces left by the rovers Opportunity and Curiosity on the rocks of Mars. On March 12, NASA announced that the analysis of Mars bedrock samples by the rover Curious showed that the ancient environment of Mars was indeed suitable for life.

Xinhua News Agency

interconnection

Manned landing on Mars is a priority for the United States.

Charles Bolden, director of the National Aeronautics and Space Administration (NASA), said in a speech a few days ago that manned landing on Mars is the ultimate goal of mankind in the solar system at present, and it is also the priority task of NASA.

Bolden made the above remarks at a conference called "The Summit of Man Landing on Mars". He said that manned landing on Mars is the focus of NASA. "All exploration projects will meet this goal, and every minute and every dollar will be used to develop technologies that will enable us to go further than low-earth orbit and the moon."

Bolden said that from the perspective of international cooperation and the increasing number of commercial space companies in the United States, the interest in sending humans to Mars has never been so strong as it is today. "Now, we are faced with a second chance to set foot on another planet. I think this is the fate of mankind. "

Bolden said that in the next few weeks, NASA will announce less than 20 astronaut candidates who are qualified for long-term space flight training. At present, more than 6,300 people have signed up, which is the second largest number of applicants since the establishment of NASA 1958.

According to the latest survey by the non-profit organization "Exploring Mars" and Boeing Company, 7 1% of Americans believe that the United States will realize manned landing on Mars in 2033. However, it is not only time-consuming but also very difficult to achieve this goal. At this meeting, space experts said that the road to Mars is facing great challenges, both in the field of science and technology and in the political and economic aspects.