Bid farewell to "Shenzhou" and welcome "Tianzhou"! China space station recently

After 90 days of "space business trip", the three astronauts are finally going home today, the mission headquarters of the manned space station project phase released the latest news, announcing that the Shenzhou 12 manned spacecraft will return to earth on September 17 after hearing this news, Nanfang + netizens can't wait to leave a message some people say that on the Mid Autumn Festival reunion night, I just came back to eat moon cakes some netizens were curious about how the health codes of the three astronauts would be displayed after they returned. As a result, they aroused a heated discussion... Shenzhou 12 is about to return to the embrace of the motherland. At the same time, Tianzhou 3 is ready to go in Wenchang today, the tianzhou-3 cargo spacecraft and the long march-7 remote-4 launch vehicle assembly have been vertically transferred to the launch area and will be launched at an appropriate time in the near future go up to the Ninth Heaven to see the moon and see the vast sky China's aerospace is still writing a new chapter On June 17, 2021, the Long March 2 F remote 12 carrier rocket carrying Shenzhou 12 manned spacecraft was ignited and launched at Jiuquan Satellite Launch Center three astronauts Nie Haisheng, Liu Boming and Tang Hongbo led the expedition and started a three-month flight mission they became the first space visitors after China's manned spaceflight entered the stage of on orbit assembly and construction of the space station, and also set a new record for the space residence time of Chinese astronauts on a single mission What did the three astronauts do in the 90 days of the space station the camera in the cabin recorded their every move. It can be said that they were not idle for a moment for example, "eating and broadcasting in space" take adequate exercise every day take blood samples from each other for physical examination during the extravehicular mission, try a wave of space "mutual shooting" occasionally take some "space blockbusters" to let the Chinese people enjoy the "blue planet" from different angles, and call them "God photographers" one after another when video connecting with Hong Kong Science and technology workers, teachers and large and medium-sized students, online display space cycling and drinking time tea write brush words in space and send the word "ideal" to students as a message for the beginning of school before evacuating the space station, you have to count items and do a good cleaning when asked what they would like to eat most after returning to earth, the three astronauts gave different answers: Nie Haisheng most wanted Xiangyang beef noodles, Liu Boming most wanted home purple flower oil beans, and Tang Hongbo most wanted watermelon netizens said one after another: it's all arranged first use of Dongfeng landing site Shenzhou 12 completed an important task before returning at 13:38 today, the Shenzhou 12 space station combination completed the flight around and radial rendezvous test, successfully verified the radial rendezvous technology, and laid an important technical foundation for the arrival of the subsequent manned mission Shenzhou 13 Shenzhou 12 is about to return. It is worth mentioning that the landing site of the spacecraft's return module is no longer Siziwang Banner in Inner Mongolia, but Dongfeng landing site of Jiuquan Satellite Launch Center why Yang Yuguang, vice chairman of the Space Transportation Committee of IAF, explained that in the past, the Shenzhou spacecraft returned from a fixed altitude, but at the space station stage, the Shenzhou spacecraft's orbit time became longer, and its orbit was affected by the orbit planning of the space station, so its altitude change range was large and it was not necessarily returned from a fixed altitude altitude change means that the range of the spacecraft returning to the landing site may also become larger, which is mainly reflected in the east-west direction the Dongfeng landing site is located in the Gobi area. Its width in the whole east-west direction is larger, and most of it belongs to no man's land or a relatively safe area. Landing here is more controllable and convenient in addition to natural advantages, there are human factors in choosing Dongfeng landing site there is the only professional Aerospace search and rescue force in China. They successfully completed the long march v b new generation manned spacecraft test ship return module and Chang'e V search and recovery mission, but it was the first time for them to carry out the manned spacecraft return module search mission Niu Yongjin, commander of the ground unit responsible for the search, rescue and recovery mission of Shenzhou 12, said that all of them had prepared for this moment for four years, and now they are "full" everything is ready, just waiting for the hero to triumph set out again "Tianhe strolls around the world, and Tianzhou cargo ships deliver goods" the Chinese space station has just said goodbye to the three astronauts and will be ready for a large wave of important "express" delivered by Tianzhou 3 in the spaceship family, those called "Tianzhou" assume the responsibility of "express brother" astronauts should be stationed in the space station for a long time, and the materials needed for eating, wearing, using and even breathing should be sent to the space station by cargo spacecraft in time; The fuel needed to maintain the correct orbit of the space station is also delivered by cargo spacecraft for example, the packages unpacked by the astronauts of Shenzhou 12 after entering the space station were basically "delivered" by the Tianzhou 2 cargo spacecraft just as the saying goes, "soldiers and horses are not moving, food and grass are first". This time, the task of Tianzhou 3 is to prepare the materials of Shenzhou 13 first "express brother" should deliver the express on time and accurately. A reliable express car can be said to be essential. To send cargo spacecraft carrying a large number of materials into space on time, we must have carrier rockets with great "strength" and high reliability the Long March 7 carrier rocket can be said to be an "exclusive train" specially developed to meet the needs of carrying Tianzhou series cargo spacecraft in recent years, the Long March 7 has carried out many missions on June 25, 2016, the first flight of Long March 7 was successful at the newly built Wenchang space launch site on April 20, 2017, the Long March 7 lifted up the tianzhou-1 cargo spacecraft. This is the first flight test of the space station cargo transportation system composed of Tianzhou cargo spacecraft and Long March 7 launch vehicle on May 29, 2021, Long March 7 successfully launched the tianzhou-2 cargo spacecraft to deliver living materials, experimental facilities and propellant for the space station's space and core module, which won another important link connecting the preceding and the following in the construction stage of China's space station project ... this time, the Long March 7 will set off again to send the Tianzhou 3 cargo spacecraft into space the vast universe, the vast galaxy, we have also looked and imagined what the outer space is like

the long journey, taking dreams as horses, we explore step by step and realize one glory after another the journey of the stars and the sea continues. We welcome the hero's triumph, and we look forward to starting again [Topic researcher] & nbsp; Chen Mingshi, Xu Mian, Wang Shikun [intern] Xiao Buyun, Deng Wenqi [Planning for this issue] Zhang Xilu [overall planning for this issue] Zheng Jiaxin (source: Nanfang +) (Editor: Bi Yonghao)

2023-03-22 10:04:43

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