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For a more easier way to understand here’s the map: I point out the four launch center approximately location on the map. The left of the red line is the plateau, the ‘first step’. And the right of the yellow line is the ‘third step’. At top right of the Xichang is the Sichuan Basin. Unlike the US’s privileged geographical location, China often really has no choice.

Don't know about how the agriculture be like in middle Asia but in Xinjiang, at the same latitude as Baikonur, we have cotton and a variety of literally outrageously sweet fruits. The Inner Mongolia region is mainly grazing and is home to the launch site for manned spacecrafts: Jiu Quan Launch Center. And as for the north-eastern part of China at the same latitude to the east, man it is one of China's granaries. Besides of the population distribution line, there also have something called 'The three steps of China's terrain': The highest one is the Tibetan plateau, with an average altitude of 3,000 to 4,000 metres. There is no need to discuss it here as no rocket would pass through here in normal conditions. The lowest one is the coastal provinces which have vast plains. Meanwhile China's economic centre of gravity and population distribution are mostly located in these places. Which means there are the places we should avoid. The middle 'step', on the other hand, is littered with hills and mountains, with occasional basins (such as the Sichuan Basin) and some small areas of plain in between, but the main terrain is still dominated by various mountain ranges. So, if we need to throw something, the plateau we won't passing by, the coastal provinces we need to avoid, so we only have two options: the mountains or sea.

Rocket version trolly problem: throw the boosters into somewhere 'mountains disguised as provinces', or let the rocket take the empty boosters few more seconds throw them into the pacific and let the whole world accuse you of polluting the sea, or go south to southern Asia or north to Mongolia and RU or west to middle Asia: throw them to another countries. It's morally questionable whatever you choose, so let's choose one that has relatively less impact. There is a population distribution line between the east and west of China: the Heihe-Tengchong line. So, every rocket launch except from Wenchang, the Hainan Island at south of China, when they go East all inevitably go to the right of the line. Use technology to solve the problems of technology and development to solve the problems that development brings. The technology for the controlled return of related rocket wrecks is developing and some of them even already being done by CNSA. Give them some time, after all, China's space development has only been going on for thirty years since it properly started in the 90s.

CASC give an official explanation for why leave station days ago before the Wentian docking to the station but re-entry the Earth today: "Firstly, to verify the ability to fly with the core module, while leaving the docking safety channel for the Wentian Module; Secondly, if Wentian encounters anomalies on orbit, the Tianzhou-3 will dock with the core module and then perform an orbit transfer to assist the core module in completing its docking with Wentian, contributing its last bit to the construction of the space station"

CMS (China Manned Space Program) official Weibo: As of 16:00 Beijing time on 27 July 2022, the orbit of the remnants of the upper stage (the core stage) of the CZ-5B Y3 launch vehicle was 176.6km perigee, 263.2km apogee, with an inclination of 41.4°.

Lijian (力箭, Powerful Arrow), the currently biggest solid rocket in China, has successfully launch six satellites into orbit These six satellites are: New Space Technology Experiment Satellite (the top left one) Orbital Atmospheric Density Sounding Experiment Satellite Low-orbit quantum key distribution micro-nanosatellite Electromagnetic force testing duo satellites And Nan Yue Science Satellite, the satellite is used for soil moisture detection, sea surface wind field detection, data transmission and other scientific experiments, educational science, and research activities. (Original source) And Tianzhou-3, was re-entry into the atmosphere at 11:31pm Beijing time on 27 July under controlled conditions. “The vast majority of the ship's components have been ablated and destroyed, with a small amount of wreckage falling into predetermined safe waters in the South Pacific.” The last two photos from Tianzhou-3: (Via Weibo) Until today, it has completed all its missions and has been in orbit for 310 days. Thank you, Tianzhou-3!

Although I don't want to admit but I like this one

Xinhua: Tianzhou-3 will re-enter the atmosphere on July 27. "The Tianzhou-3 cargo ship recently left the space station has completed the established space technology tests and will be re-entered into the atmosphere under control on July 27 as planned, with a small amount of wreckage falling into the intended waters of the South Pacific."

I finished my trip to the south of England for the last few days and returned to my place. I found some interesting stuff on the Chinese internet about rocket launches: I used to have a nice job: "HOLY SH*T, I didn't get it in focus!" This guy, probably a photographer for Xinhua News Agency, issued a ‘Chinese national curse’ during the launch because his camera was out of focus. And this guy was just in time to see the launch of the Wentian as he parachuted in. What is it like to live not too far from a rocket launch site? 00:44: Starting to feel a little vibration and sound in the ground 00:50: The sound woke up Grandma from her nap OK seriously, here's another video about the Wentian from assembly to launch.

Surprising for the camera also can be full-auto?

The camera used to record this video was placed on the site of the Beijing Command Centre. The camera is pointed at the big screen at the Beijing Command Centre. So the "weird audio" you heard actually was the communication between the ground command centre, other tracking stations on ground from elsewhere and the astronauts. As for the machine gun-like shutter, I believe it's just the journalists from the various media were doing their job. If you really curious what they were talking about: Qingdao Station: 青岛跟踪天和问天结束 (End of Qingdao tracking the Tianhe and Wentian) Beijing Command Center: 青岛跟踪结束 (End of Qingdao tracking) Chendong getting in the module: 手机没带！(I forgot my phone!) (Not sure he said that but it sounds like this to me) "Tiangong" (post to monitor space station data on the ground): 天宫申请暂停地面上行网络和图像话音数据 (“Tiangong” request for suspension of ground uplink network and image voice data.) Beijing Command Center: 北京明白(Beijing copied) *Cai Xuzhe threw the phone from the node to Chendong* Huashan Station: 华山明白(Huashan copied) Chendong: 北京我是神舟十四号，问天舱内两个____插头已经拔下 (Beijing here’s Shenzhou-14 speaking, two of the [I can’t heard clearly] plugs in the Wentian were already pull off) Beijing Command Center: 北京明白 (Beijing copied) Chendong: 神舟十四号报告：乘组已顺利进入问天舱。这使我们在太空中拥有了第二个生活舱和工作舱。中国空间站建设又成功了一大步，我们感到无比自豪和幸福！(Shenzhou-14 reporting: Crew has successfully entering the Wentian module now. This gives us a second living and working module in space. Another big step in the successful construction of China's space station, and we feel immensely proud and happy!) *Passing the phone to Liu Yang* Liu Yang: 盼望着盼望着，我们迎来了“问天”小伙伴。从今天开始空间站就进入到了多舱段运行时代，我们的太空家园将会越来越美好！(We are looking forward to the arrival of our "Wentian" partner this days. From today onwards, the space station will enter the era of multi-compartment operation, and our home in space will become more and more beautiful!) *Passing the phone to Cai Xuzhe* Cai Xuzhe: 我们一定会继续努力工作，建设好、运行好、维护好我们的空间站。不辜负党和人民的期望！(We will certainly continue to work hard to build, operate and maintain our space station well. Live up to the expectations of the Party and the people!) Chen Dong: 敬礼！(Salute!) *machine gun-like shutter* Chen Dong: 礼毕！(End of salute!) Beijing Command Center:北京明白，祝贺神舟十四号顺利进入问天启用新的太空实验舱。预祝后续在轨工作、生活一切顺利！(Beijing copied. And congratulates Shenzhou-14 on smooth entry into the Wentian to activate the new space experiment module. We wish you all the best in your subsequent work and life in orbit!)

Here we go! 2:44 version

Surprise! Found a Wentian’s docking video! https://m.weibo.cn/1971177973/4794970748223746

Xinhua: Wentian module is docked with the core module. As planned, the Shenzhou-14 crew will enter the Wentian Module. Now is 3:25 Beijing time so there’s no tv or online live for the docking. Thinks we need to wait couple hours later for footage about the astronauts entering the module.

19m!

200m mooring point for docking!

Yeah, so thinks that’s why it’s hard to graduate from Materials Science subject

The Shenzhou-14 crew watching the launch live be like: *when you looking for your Amazon order delivery *

Or to make the rocket more susceptible to ablation within a certain temperature range while maintaining safety: It's fine when everything is burnt.

But that means there’s more weight for the engines or fuel on it. You know, every gram is count up there. So I’m thinking could de-orbit sail helps in this case.

Although in purely probabilistic, "theoretical" terms, it is unlikely to hit anyone and the fuel probably was already discharged. But there is something on this planet called Murphy's law… Probably we need more Tsinghua University’s atmosphere research probes.

Hope this bad boy can behave

More Wentian’s photos published: The Chinese words below: the Wentian Module can carry out space science experiments at the intersection of single or multiple disciplines. Assembling the control module. We can confirm that there has two grapple fixture for the robotic arm now and this one is closer to the airlock: it definitely is for the astronauts’ EVA mission The shorter robotic arm for the exposure experiment racks The white Chinese: Wentian Module’s launch weight are around 23000kg The indexing robotic arm (Lyappa Arm 2.0) And the entire module looking from the tail These photo is from a video published by the CMS’s official Weibo. But there’s still don’t have English subtitles. The video also mentioned that it provides 50 m3 inside for the astronauts. CASC’s official Weibo said that the noise inside are 60dB and no more than 50dB in those 3 sleeping bays, a new toilet on board, temperature will be 24 ℃ and with 40% humidity, taking 8 experiments racks and 22 standard sockets for the exposure experiment payloads. It will be a fast docking, which is about 7 hours to docking with the core module. And it will shift to the right or starboard side (or CNSA’s way to call it: the quadrant IV) one month earlier before the launch of Mengtian Module. In terms of the schedule, the shifting will be happened in September.

Actually, if anyone are boring enough. There’s a live online now hahaha Here’s the link: https://b23.tv/5QeaL2W

Wow! Something is going better than what we expected! If she really can make it, we can put one more country in “Fun fact: these countries had astronauts and went to space”