On October 15, 2021, female astronaut Wang Yaping said that she had been on a business trip for half a year, and on April 16, 2022, she and Zhai Zhigang and Ye Guangfu returned on time for the "space trio", and the space station was separated for 9 hours and landed on the Dongfeng landing field.
Explore the sea of stars and return to the land of the motherland. Relying on independent technical support, let's say two things:
First, there are many steps from braking out of orbit, to entering the atmosphere, landing, but the trio returned only 9 hours, while the return of Shenzhou XII took more than a day, because the latter relies on the atmosphere to slow down, slow around the earth, and then find a landing site, and the landing is not accurate, the error is large.
Shenzhou 13 is directly back to the ground, no longer slowing down around the atmosphere, this is because we have innovation in technical programming, at the same time, the improvement of the external materials of the landing module, the upgrading of calculus technology, in order to allow it to smoothly cross the "black barrier", experience the violent friction of the atmosphere, and land smoothly.
Second, talk about the trio's "golden vest" - the second generation of "flying" extravehicular spacesuits.
You should know that the extravehicular spacesuit is the most expensive clothing in the world, not less than tens of millions of dollars, and the United States wants more than 100 million US dollars.
For example, the helmet mask of the spacesuit is directly gilded! Reflecting radiation in space allows astronauts to maintain a clear vision, the cost of this piece alone is already worth a lot.
In addition, it is necessary to integrate communicators, pressure stabilizers, oxygen supply equipment, and neoprene, Goldex, polyester multi-layer insulation, minus 270 degrees on the outside, and about 20 degrees inside the spacesuit, the combination is difficult, it is simply outrageous, and the key is also a weight problem.
The result is that the second generation of "Feitian" is only 90 kilograms, much lighter than the previous generation of 130 kilograms, the cost is only 30 million yuan, with these, the trio can flexibly and safely complete tasks such as walking, operation and docking in extravehicular space, and return to the motherland safely.
Just now, seeing that the three astronauts had left the capsule safely, waving, saying "feel good", I suddenly remembered that in the 70s, the sad urge of Apollo 13 was also No. 13, and those people were the rest of their lives, while Zhai Zhigang, Ye Guangfu, and Wang Yaping were stable and peaceful.
Thanks to the motherland's strong scientific and technological heritage, let the unimaginable in the past become the consummation of today.