China launched the Shenzhou 23 spacecraft from the Jiuquan Satellite Launch Center on Sunday, carrying three astronauts to the Tiangong space station. One crew member is expected to remain in orbit for one year—among the longest single stays in space—while the
A rocket blast-off from northwestern China was the easy part.
The real test is what happens after the Shenzhou 23 spacecraft reaches Tiangong, China’s orbiting space station—because one of the three astronauts aboard is expected to stay for a full year, a duration that would place the mission among the world’s longest single stays in space.
The spacecraft lifted off Sunday from the Jiuquan Satellite Launch Center in China’s northwestern region. Li Benqi, an official at the launch center, described the moment in videotaped remarks published by Chinese state media, calling the launch “a complete success.”
Shenzhou 23 is set to carry three astronauts: Zhu Yangzhu, the commander; Zhang Zhiyuan; and Lai Ka-ying, also identified by Chinese authorities as Li Jiaying using the Mandarin transliteration of her name.
Lai is already drawing attention well beyond her title on the manifest. Born and raised in Hong Kong, she holds a doctoral degree in computer forensics. State media also described her as the first astronaut from Hong Kong to travel on a space mission. and the country’s fourth female astronaut to go to space.
One crew member’s yearlong stay is the mission’s defining feature. State media said the long-duration assignment is intended to “explore human adaptability and performance limits” in long-duration spaceflight environments.
The shift is not happening in isolation. The Shenzhou 23 crew is expected to conduct dozens of science and application projects once they dock and begin their work. Their schedule also includes completing an in-orbit rotation with the crew of Shenzhou 21. which has been aboard Tiangong for more than 200 days.
That rotation matters because it connects two different kinds of milestones in China’s space push: building routine long-term habitation, and stretching the limits of what humans can do while staying there.
The broader ambition is already in view. China is preparing for its first crewed lunar landing by 2030, and Shenzhou 23 arrives as the country moves more visibly into the future-facing parts of human spaceflight.
China’s space station program, Tiangong—meaning “Heavenly Palace”—first hosted a Chinese crew in 2021. Since then, missions have repeatedly tested the country’s ability to keep astronauts safely operating in orbit, including the kinds of disruptions that can turn a planned stay into a race.
Last year. an emergency mission in the Shenzhou program returned a team of astronauts stranded on the space station because of a damaged spacecraft. Before that. a separate incident led to a nine-day delay as astronauts attempted to return to Earth after their spacecraft window was damaged. They ultimately returned on the Shenzhou 21 spacecraft after its crew arrived at the space station.
China determined that the damaged spacecraft, Shenzhou 20, did not meet the safety standards necessary to carry astronauts.
The stakes of these decisions have also been shaped by geopolitics. China’s space program expanded after the country was effectively excluded from the International Space Station on U.S. concerns over national security, and the U.S. is widely seen as China’s top space rival in spaceflight. NASA has aimed to land astronauts on the lunar surface in 2028.
Within China’s own Tiangong timeline, Shenzhou 21 offers another marker of the program’s trajectory. Launching in late October, its three-person crew included China’s youngest astronaut. Four mice were on board as well. marking the first live mammals on a space mission since Beijing launched its program.
Now Shenzhou 23 is set to take that experience into a longer, more demanding chapter—one where a year in orbit won’t just be a headline, but the core measure of whether humans can sustain performance and adaptability as missions stretch further from Earth.
Shenzhou 23 Tiangong space station China space program yearlong mission long-duration spaceflight Jiuquan Satellite Launch Center Zhu Yangzhu Zhang Zhiyuan Lai Ka-ying Li Jiaying lunar landing 2030 Shenzhou 21 rotation computer forensics Hong Kong astronaut
So it’s basically one person just living up there for a year? Wild.
I saw something about Hong Kong and computer forensics… like are they sending her to hack from space? Because that’s the vibe I’m getting.
Wait, they said “fourth female astronaut” but then also “first astronaut from Hong Kong.” That sounds contradictory? Unless they mean first Hong Kong woman and fourth overall or something. Either way, year in orbit sounds dangerous as hell.
A yearlong stay… doesn’t that mean they’re basically testing how long a human can survive without gravity? Kinda reminds me of those movies where they get all messed up. Also the launch being a “complete success” is nice but the docking part is where stuff always goes wrong, like I’ve seen happen in other missions so yeah I’m skeptical.