China's Chang'e-5 lunar probe has completed most of its large-scale trials recently. It is planned to enter the launch site joint test in August to prepare for the lunar sampling return mission at the end of this year.
The lunar exploration project is a representative project in the development of China's aerospace industry. On the 1st, Ye Peijian, a member of the National Committee of the Chinese People's Political Consultative Conference and the chief commander of the Lunar Exploration Satellite of the Chinese Academy of Aerospace Science and Technology Corporation, was interviewed by Xinhua News Agency on the 1st. The fantasy journey is clearly drawn out.
Data map: Moon
The fifth battle of the "Exploration of the Moon" on the 5th: the realization of the lunar sampling returnIn 2017, the biggest attraction of China Aerospace should belong to the No. 5.
According to the plan, China will launch the No. 5 detector around the end of November this year to achieve a soft landing of the moon and sample return. This means that the final step of the three steps of “around, fall and return†of China’s lunar exploration project is about to be completed.
Ye Peijian said: "It is the biggest highlight of this mission and the most important challenge to successfully sample and return and pack 2 kilograms of moon soil back to Earth."
"The main goal of the No. 5 is to get something." Ye Peijian said that compared with the Chang'e III, it was on the moon and analyzed by the device to do monthly analysis. The big challenge this time is to pass the lunar gravity environment. The robot will retrieve the first moon. There may be errors in the real environment and the simulated environment, so higher requirements are placed on the level of detail and accuracy.
It is understood that this time on the 5th will achieve four "first time", fully demonstrating the major breakthrough in China's space capabilities: the first automatic sampling on the lunar surface, the first takeoff from the lunar surface, the first time on the lunar orbit 380,000 km away No one is rendezvous and docked, and for the first time, with the moon, returning to the Earth at a speed close to the second universe.
"If the sampling returns successfully, it will mean that the Chinese have their own lunar surface samples for analysis, which will help us to further understand the state of the moon, temperature, material content and other important information, and help us to have a deeper understanding of the moon." Ye Peijian said.
According to reports, after the successful completion of the lunar sampling of the No. 5, the first three steps of the unexplored moon in China ended successfully.
Data map: the back of the moon
"The fourth phase of the lunar exploration" curtain opened: relay satellite will be China's contribution to the worldAt 18:00 on October 24, 2007, China's first lunar orbiting satellite, Chang'e-1, was successfully launched. Today, the Chinese are on the road to explore the moon, and the hoof is stabilizing.
Ye Peijian said that after the Luhan 5th, the fourth phase of China's lunar exploration project will also be kicked off. The Lunar 4 and China's future plans for the Moon's South and North Pole exploration are all "four months of the lunar exploration."
The No. 4 is expected to be launched in 2018 and will implement the world's first soft landing on the back of the moon and patrol the probe.
It is understood that since the 嫦娥4 will carry out radio frequency measurements from the back of the moon, avoiding the interference of the sun and the earth, the measurement will also obtain more information that was previously unknown.
"The world has not had a soft landing on the back of the moon. The United States and the Soviet Union each had an aircraft landing hard on the back of the moon. We decided to land the 嫦娥4 on the back of the moon. If this can be achieved, it will be the first time for mankind. A soft landing on the back of the moon." Ye Peijian said.
"Because we can't see the earth on the back of the moon, we can't communicate. We will play a relay satellite from the moon 80,000 kilometers to solve the communication problem." Ye Peijian said, "We will launch half a year before the launch of the 4th next year." Following the satellite to the Lagrange L2 point of the Earth, this will be the first time humans have launched relay satellites between the Earth and the Moon."
"In the future, if foreign countries want to go to the back of the moon to detect, they can get help through our relay satellites, which is also a major contribution of China to the world." Ye Peijian said.
China’s manned mission to the moon is not limited: there are still three technical difficulties to overcome"Humans must walk out of the earth, and the moon is the closest planet to humans. I think Chinese astronauts will not give up manned moon landings." Ye Peijian stressed.
According to the "2016 China Aerospace" white paper, in the next five years, China will lay the foundation for manned exploration and development of the Earth's space.
At present, the Chinese lunar exploration project is still in the stage of no-exploration. However, no one is exploring the moon is a prelude to manned to the moon. Manned moon landing is the goal that Chinese astronauts have been striving for for many years.
In Ye Peijian's view, there is a high correlation between unmanned lunar exploration and manned landing on the moon. “No one can provide a lot of information for manned landing on the moon, although no one can't replace the technical requirements of manned landing on the moon. The latter's requirements in terms of scale, safety and reliability are much higher than the former. This means that in the future it will be necessary to overcome more technical difficulties," he said.
It is understood that at present, China needs to pass the "three roads" to achieve manned landing on the moon: the first is to develop a heavy-duty carrier rocket, which can send people and lunar modules to the moon; the second is to solve the problem of people coming and going. Life support, safety and working conditions; the third is to carry out more ground conditions to ensure that all tests are fully verified.
"In this case, heavy-duty launch vehicles are the most difficult and most urgent, and we still have a gap with the international advanced level." Ye Peijian said.
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