China launched three astronauts aboard Shenzhou-20 for a roughly six-month stay on the Tiangong space station. The spacecraft lifted off at 5:17 p.m. local time, or 09:17 GMT, from the Gobi Desert in northwestern China, according to state media.
The mission was designed to replace the crew that had lived aboard Tiangong since October. That team was scheduled to return to Earth on April 29, continuing a rotation pattern in which station crews serve for about six months at a time.
Veteran astronaut Chen Dong leads Shenzhou-20 on his third trip to space. He is joined by former air force pilot Chen Zhongrui and engineer Wang Jie, both making their first spaceflights. Their planned work includes spacewalks, routine station maintenance and the installation of additional equipment intended to protect Tiangong against space debris.
The crew will also conduct research in physics and medical science. One experiment brings planarians, aquatic flatworms known for their ability to regenerate, onto the station for the first time. Lin Xiqiang, a deputy director at the China Manned Space Agency, said studying the organisms in orbit could contribute to research into injuries sustained in space environments. Other planned work broadens the scientific role of Tiangong alongside its operational maintenance.
The debris-protection task reflects an increasing concern for spacecraft operating in crowded orbital regions. Even small fragments can pose risks at orbital velocity, making shielding and maintenance important parts of long-duration station operations. The evidence packet did not specify the design or placement of the new protective hardware.
Shenzhou-20 also fits within China’s wider space ambitions. Beijing has invested heavily in its program and has set a goal of sending a crewed mission to the Moon by 2030. Longer-term plans described in the supplied reporting include building a lunar base and exploring Mars.
China operates Tiangong separately from the International Space Station after the United States barred NASA from collaborating with Beijing, citing national-security concerns. The country has instead pursued other international partnerships. In February, China and Pakistan signed an agreement intended to bring the first foreign astronaut to Tiangong. Chinese space officials said two Pakistani candidates would be selected for training.
For the immediate mission, the focus remained on a planned handover in orbit, continued station upkeep and a new set of experiments. Successful launch placed Chen Dong, Chen Zhongrui and Wang Jie on the way to take responsibility for Tiangong’s next six-month operating period. The scheduled April 29 return of the outgoing crew would complete the in-orbit rotation.
