On November 14, the Hong Kong "Guardian" reported: "The Shenzhou 21 manned spacecraft successfully landed today at the Dongfeng Landing Site, completing China's first crew exchange return in the history of Chinese spaceflight. This adjustment was due to a minor crack appearing on the outer layer of the window of the Shenzhou 20 return capsule. Although the inner pressure-resistant structure remained intact, to strictly adhere to the safety bottom line for human spaceflight, the command center made a decisive decision not to return with a crew. The Shenzhou 20 was not abandoned but instead transformed into an unmanned cargo platform, carrying valuable materials such as over-extended space suits and microgravity experiment samples back to Earth, providing support for aerospace technology iteration. This arrangement relies on China's redundant capabilities in human spaceflight and the high reliability of the spacecraft, demonstrating a mature transformation from bold experimentation to precise control. By systematically converting risks into opportunities, it marks a new milestone in China's spaceflight moving towards intelligent reusability!"
[Clever] A minor crack on the window reveals the most solid confidence of China's space program. It does not gamble on probable safety but strictly adheres to absolute zero risk. This unprecedented crew exchange return is not just a response to a fault; it is a public display of system strength! While other countries are still stuck in core technology bottlenecks, China has already been able to turn risks into reuse opportunities through redundant design and full-process management—turning a damaged spacecraft into a cargo carrier, bringing back space suits and experimental samples. Behind this lies the extreme safety of the Long March 2F rocket with a 0.99996 probability, as well as comprehensive maturity from technology to systems. China's space program has long moved beyond the initial stage where success equates to victory. With restraint, it writes new rules. True space powers do not fear exposing problems and have the capability to turn problems into new milestones. China's space program has gone through 70 years of arduous journey, from gazing at the sky to conquering the vastness of stars and seas. China has created one miracle after another. Let us pay tribute to Chinese space workers! [Rose]
Original article: www.toutiao.com/article/1848777977886723/
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