#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BRI #October2022 | #嫦娥五号#CLEP the #Moon #Change5 #MonsRumker lunar soil reveals a great mystery…!

More than One year ago on 24th November 2020, the Chang Zheng – Long March Five Carrier Rocket Launched away  in CNSA – China National Space Administration China Wenchang spaceport launch, Change Five  Lunar probe into orbit, opened up towards China – People’s Republic of China’s first celestial bodies sample return trip from Mons Rumker on the Lunar Surface of the moon New research achievements – Chinese scientists reveal the composition of lunar soil minerals and space wind at the landing site of Chang’e 5

On the week of 17th October 2022, The Returning lunar soil samples Chang’e 5 Mons Rumker lunar soil reveals a great mystery!…… Why the moon still has volcanic activity 2 billion years ago Chang’e 5 lunar soil, revealing a big mystery!  Chinese scientists have proposed a new model of lunar thermal evolution based on the study of the Chang’e-5 lunar soil, revealing a mystery that has plagued the academic world: why the moon still had volcanic activity 2 billion years ago.

This is a schematic diagram of the magma and thermal evolution of the moon in different periods (drawn on October 20, 2022). Published by Xinhua News Agency (Photo courtesy of Institute of Geology and Geophysics, Chinese Academy of Sciences)

Chinese scientists have proposed a new model of lunar thermal evolution based on the study of the Chang’e 5 lunar soil, revealing a mystery that has plagued academia: why the moon still had volcanic activity 2 billion years ago.

According to Chen Yi, a researcher at the Institute of Geology and Geophysics of the Chinese Academy of Sciences, the moon was formed about 4.5 billion years ago, and its mass is only about 1% of that of the earth. For such a small celestial body, in theory, it should cool rapidly and stop volcanoes very early. Activity and become a “dead” planet.
The return of Chang’e-5 lunar soil samples has triggered a new round of lunar research upsurge. In October 2021, Chinese scientists published three articles in the journal “Nature”, revealing that lunar volcanic activity could last until 2 billion years ago, refreshing human understanding of the history of lunar magma activity and thermal evolution.
According to experts, lunar basalt is a rock formed by the partial melting of the lunar mantle (equivalent to the earth’s mantle) through volcanic eruptions to the lunar surface to cool and crystallize. International scholars have put forward two hypotheses about the partial melting of the continuously cooling lunar mantle: one is that the heat generated by radioactive elements causes the lunar mantle to heat up; the other hypothesis is that if the water content is high, the melting point of the lunar mantle will be lowered.
However, Chinese scientists’ research on the Chang’e-5 basalt revealed that the lunar mantle source region is not rich in radioactive heat-generating elements and is very “dry”, ruling out the above two hypotheses. Therefore, why the lunar volcanism has continued for so long has become an unsolved mystery in a new round of lunar research.

Yuan Jiangyan, an engineer at the Scanning Electron Microscopy and Electron Probe Laboratory of the Institute of Geology and Geophysics, Chinese Academy of Sciences, analyzes the composition of the Chang’e-5 lunar soil (photo taken on October 14, 2022). Published by Xinhua News Agency (Photo courtesy of Institute of Geology and Geophysics, Chinese Academy of Sciences)

In response to this problem, Chen Yi led the scientific research team to select 27 representative Chang’e 5 basalt cuttings, and used the newly developed scanning electron microscope energy spectrum quantitative scanning technology to analyze the main components of the whole rock cuttings, combined with a series of The petrological and thermodynamic simulation calculations have successfully recovered the initial magma composition of the Chang’e-5 basalt, and compared it with the initial magma of the Apollo samples to deduce their origin depth and temperature.
The study found that the initial magma of the young Chang’e-5 basalt contained more calcium and titanium than the Apollo samples, suggesting that the mantle source region of the Chang’e-5 basalt had more additions of calcium-rich and titanium-rich materials. This part of the material is precisely the product of the late crystallization of the lunar magma ocean, and has the characteristics of being fusible. Its addition will significantly reduce the melting point of the lunar mantle and induce partial melting of the lunar mantle to form young lunar basalts. Further simulation results show that the moon’s interior has experienced continuous cooling for more than a billion years, and the temperature has only dropped by about 80 degrees Celsius.


Chen Yi said that this study shows that although the interior of the moon continues to cool slowly, the fusible components crystallized in the late lunar magma ocean are continuously added to the deep lunar mantle, which not only “supplements calcium and titanium” for the lunar mantle, but also lowers the lunar mantle. the melting point, thereby overcoming the slow cooling lunar interior environment and triggering long-lasting lunar volcanism.


The results were published in the latest issue of the American journal Science Advances.

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BRI #September2022 | #嫦娥五号#CLEP The #Moon #Change5 onwards to Change8 #LunarMission #中秋節 #MidAutumnFestival 2022 The fourth phase of the lunar exploration project has been approved, and the basic production of Chang’e-6 products has been completed…

More than One year ago on 24th November 2020, the Chang Zheng – Long March Five Carrier Rocket Launched away  in CNSA – China National Space Administration China Wenchang spaceport launch, Change Five  Lunar probe into orbit, opened up towards China – People’s Republic of China’s first celestial bodies sample return trip from Mons Rumker on the Lunar Surface of the moon New research achievements – Chinese scientists reveal the composition of lunar soil minerals and space wind at the landing site of Chang’e 5

The fourth phase of the lunar exploration project has been approved, and the basic production of Chang’e-6 products has been completed…… The CNSA- China National Space Administration announced yesterday that China- People’s Republic of China’s lunar exploration project has made new progress. The fourth phase of the lunar exploration project has been approved by the state and is progressing smoothly. According to sources, the fourth phase of the lunar exploration project includes the Chang’e 6, Chang’e 7 and Chang’e 8 missions, which will be implemented successively in the next ten years. Among them, Chang’e 6 is the backup of Chang’e 5, which has the function of sampling and returning, and will go to the far side of the moon to perform missions. The production of Chang’e 6 has basically been completed. Combined with the first visit of Chang’e 4 to the back of the moon, after the demonstration of engineers and scientists in the early stage, the back of the moon is also taken into consideration. ….

Via CNSA China Space Administration –CLEP China Lunar Exploration project management office

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #July2022 | #CMS #ChinaMannedSpace #CLEP #ChinaLunarExplorationProgram the Advance Next Generation #LunaMannedLanding #ChangZheng #LongMarch #CZ-5DF #CarrierRockets #ReusableCarrierRocket The first flight is not far away …..

中国空间站 On currently on 29th July 2022 2022, the Belt and Road Initiative CNSA –China National Space Administration   on the currently developments of the  latest progress of China’s Chang Zheng – LongMarch manned lunar landing carrier  rockets Science and Technology Daily reporters learned from the First Academy of China Aerospace Science and Technology Corporation on July 28 2022 that the 702 Institute of the Academy recently successfully completed the multi-machine parallel static-motion joint test of my country’s new generation of manned launch vehicles. It strongly supported the smooth transition of the development of this type of rocket to the initial stage.

The first flight is not far away! China- People’s Republic of China’s first-generation moon landing Carrier rocket began to be prototyped, with a near-Earth capacity of 70 tons….  

China- People’s Republic of China’s moon landing rocket has completed the multi-engine parallel static and dynamic test and began to manufacture, and the first flight may not be far away

​​China’s new generation of manned rockets has made important progress! According to news from the First Academy of China Aerospace Science and Technology Corporation published by the “Science and Technology Daily” and other media on July 28th 2022, the 702 institutes affiliated to the academy have recently successfully completed the multi-machine parallel static-motion joint test of my country’s new generation of manned launch vehicles. The first step of this type of rocket will be transferred to the initial sample development stage.

At present, my country’s only manned rocket is the Long March 2F rocket, which is especially responsible for transporting China- People’s Republic of China’s Shenzhou spacecraft and Takionauts to the sky. My country’s new generation of manned rockets is a rocket with larger and more advanced capacity. It is also the “921 rocket” that netizens have often said over the years. In fact, its real code name is “CZ-5DF”, which means Chang Zheng- Long March 5. The series of lunar rockets are exactly the rockets prepared for my country’s manned lunar landing.

According to the published data, this rocket is about 100 meters high. After successful development, it will be the highest rocket before the appearance of the Long March 9. It is about the height of a 33-story building, which should be higher than the building you live in. Well, isn’t it shocking?

​And it will also be the largest rocket before the appearance of the Long March 9 carrier rocket, with a diameter of 5 meters, the same as the Long March 5, but its shape is very different from the Long March 5, because it adopts the CBC configuration, but It is not a “triple version of Chang 5”, it is not the configuration of the three core-stage rockets of the current Long March 5, because it is not composed of three core-stage rockets of the Long March 5. There are only two YF-77 liquid hydrogen-oxygen engines with a thrust of only 100 tons. The thrust of the Fat Five mainly relies on four bundled boosters. Each booster is equipped with two YF-100 engines with a thrust of 240 tons. , the thrust of the four boosters reached 960 tons, which together contributed to the 1060-ton thrust of the Long March-5 first-stage rocket.

​The new generation of manned rockets with  This type of rocket weighs about 2,200 tons and is a three-stage and a half configuration. The capacity of the Earth-Moon transfer orbit will not be less than 27 tons, which can meet the capacity requirements for launching China’s new generation of manned spacecraft (within 25 tons in weight). It can also meet the upward mission of large spacecraft in low-Earth orbit, because the orbital carrying capacity of low-Earth orbit will reach more than 70 tons.

​Take China’s space station as an example. After the Wentian experimental module was docked, the total weight of China’s space station assembly has now reached 66 tons, and China’s new generation of manned rockets can be sent into orbit with one launch mission. Zhu Xiquan, deputy chief designer of the 702 Institute, said: The successful completion of the parallel static-dynamic joint test of my country’s new generation of manned rockets marks the first time that my country has broken through the large-load static-dynamic joint test technology of launch vehicles. The test with the largest scale, the most technical difficulty and the most complex test process has laid a solid foundation for the new generation of manned launch vehicles to adopt the parallel technology of multiple high-thrust engines.

​According to the plan, this rocket will be the main launch vehicle for manned moon landing missions in China in the next 20 to 30 years, so it can also be called China’s first-generation “moon landing rocket”. It is significant, marking that China’s manned lunar landing rocket has entered a substantial manufacturing moment. After the manufacturing is completed, it will be a test flight. It was previously reported that the first flight will be completed before 2025. It can be seen that the first flight is not far away! Moreover, this type of rocket will also expand the recovery and reuse capabilities of the take-off stage in the future, that is, to create a reusable rocket like Musk’s Falcon rocket, which can also greatly reduce the launch cost. ​

References :”Science and Technology Daily” July 28 article “China’s new generation of manned rockets has made important progress “

Images and visuals are from their respectives.

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #July2022 | #CMS #ChinaMannedSpace #CLEP #ChinaLunarExplorationProgram the Advance Next Generation #LunaMannedLanding #ChangZheng #LongMarch #CarrierRockets …..

中国空间站 On currently on 29th July 2022 2022, the Belt and Road Initiative CNSA –China National Space Administration   on the currently developments of the  latest progress of China’s Chang Zheng – LongMarch manned lunar landing carrier  rockets Science and Technology Daily reporters learned from the First Academy of China Aerospace Science and Technology Corporation on July 28 2022 that the 702 Institute of the Academy recently successfully completed the multi-machine parallel static-motion joint test of my country’s new generation of manned launch vehicles. It strongly supported the smooth transition of the development of this type of rocket to the initial stage.


The key point is in picture 1 also pictured on the header. The pull rods carrying 350 tons and the thrust of 2800 tons are installed in the 8 columns. Obviously, this test is the core stage (refer to Figure 2), and the thrust of the entire rocket (including the two boosters) is to transmit from this.


This is the new ultra heavy large Chang Zheng –Long March domestically made Carrier rocket that I am most looking forward to, and it is the key model for realizing the dream of manned lunar moon landing…..  

This test is an important test to verify the key technologies of multi-machine parallel connection and bottom-box force transmission of a new generation of manned launch vehicles. Wang Xiaohui, director of the 702 Institute, said that the successful completion of the test marks the first time that my country has broken through the large-load static-dynamic joint test technology. It is an important innovation in test methods and test capabilities. Solid foundation.


“This is the largest, most technically difficult, and most complicated test ever conducted in the field of mechanical testing in my country.” Zhu Xiquan, deputy chief designer of the 702 Institute, introduced that the test needs to break through the static thrust of multiple engines under actual flight conditions Combined loading with vibration load involves key test technologies such as vibration elastic boundary simulation, nearly 1,000-ton static load elastic loading, and multi-machine combined multi-dimensional vibration control and loading under large static load.

The new-generation manned launch vehicle base stage module has a diameter of 5 meters and is equipped with multiple 120-ton engines. Zhu Xiquan said that the high-thrust engine multi-machine parallel technology is the first time that my country’s launch vehicle has adopted it, which brings about the coupling effect of static and dynamic forces of complex structures and the nonlinear transmission problem under the action of combined loads. One of the key technologies to deepen research. In order to analyze and solve this problem and verify the effectiveness of the design scheme, the technical team designed and implemented the first multi-machine parallel static and dynamic joint test in my country.

Since 2019, the 702 Institute has demonstrated and determined the experimental technical plan with relevant units. According to the plan, the team successively broke through the key technologies required for the test, and this year developed a static and dynamic load consisting of 28 sets of 50-ton oil and gas support systems, multiple sets of 20-ton induction shaking tables and a set of 1,000-ton vibration elastic boundary systems. Combined loading test system…

Images and visuals are from their respectives.

#CNSA #ChinaNationalSpaceAdministration #国家航天局 |#BeltAndRoadinitiative #July2022 | #嫦娥五号#CLEP The #Moon #Change5 #LunarMission #MonsRumker #LunaExploration the Magical Chang’e 5″ #PopularScienceDocumentary Officially Released in #Beijing…

More than One year ago on 24th November 2020, the Chang Zheng – Long March Five Carrier Rocket Launched away  in CNSA – China National Space Administration China Wenchang spaceport launch, Change Five  Lunar probe into orbit, opened up towards China – People’s Republic of China’s first celestial bodies sample return trip from Mons Rumker on the Lunar Surface of the moon in which now on the week of 12th July a new series Popular Science Documentary named the “The Magical Chang’e 5” Popular Science Documentary Officially Released in Beijing- China – People’s Republic of China…  

 .……  

On July 12th 2022, the popular science documentary “The Magical Chang’e 5” jointly produced by the National Space Administration and the China Association for Science and Technology was officially released in Beijing. Shu Wei, secretary of the Secretariat of the China Association for Science and Technology, and Dong Baotong, deputy director of the National Space Administration, attended the press conference and delivered speeches. Hu Hao, the chief designer of the third phase of the lunar exploration project, and relevant comrades from the China Association for Science and Technology, the National Space Administration, the Space Foundation, and the engineering research and development units attended the conference- press conference.

On December 17, 2020, the Chang’e 5 mission, the third phase of the lunar exploration project, obtained 1,731 grams of lunar samples and returned to Earth, realizing the millennium dream of the Chinese nation “to embrace the moon in nine days”, and promoting human lunar sample research into the “Chang’e Era”. Chang’e 5 is not only a historical achievement of scientific and technological innovation, but also has a very high value for popular science. Show the lunar exploration journey of Chang’e 5 in the way of popular science, and tell the technological breakthrough of Chang’e 5 in the language of popular science, give full play to the social efficiency of major projects, and promote the process of popularization of scientific and technological resources.

Scientific and technological innovation and scientific popularization are the two wings to realize innovation and development. The popular science documentary “The Magical Chang’e 5” focuses on the key links of the Chang’e 5 mission from launch to home. It reproduces the magical journey of Chang’e’s lunar exploration in the form of records + popular science, and uses the form of documentary + animation It describes the scientific principles of Chang’e’s lunar exploration, which is a beneficial exploration of the combination of scientific and technological innovation and scientific popularization.
 

At the press conference, three senior consultants of the lunar exploration project sent messages via video. Academician Luan Enjie, the first commander-in-chief of the lunar exploration project, said that our lunar exploration project has embarked on a lunar exploration road with Chinese characteristics. Academician Ouyang Ziyuan, chief scientist of the Chang’e-1 lunar application system, said that “The Magical Chang’e-5” is China’s first all-round, multi-dimensional and three-dimensional science popularization work based on the lunar exploration project. Academician Ye Peijian, chief designer and commander of the Chang’e-1 probe, said that the core technology can only rely on self-reliance. They believe that “The Magical Chang’e 5” will surely plant spiritual seeds in the hearts of young people and take our exploration to a deeper space.

Via CNSA China Space Administration –CLEP China Lunar Exploration project management office