A crew of three Chinese astronauts, including the country's youngest-ever, docked early Saturday at the Tiangong space station, accompanied by four lab mice.
The Shenzhou-21 spaceship docked at 3:22 am (1922 GMT Friday), China's state news agency Xinhua reported.
That was about three-and-a-half hours after the spaceship departed from the Jiuquan Satellite Launch Center in northwest China, powered aloft by a Long March-2F rocket.
The Tiangong space station -- crewed by teams of three astronauts that are exchanged every six months -- is the crown jewel of China's space programme, into which billions of dollars have been poured in a bid to catch up with the United States and Russia.
China has bold plans to send a crewed mission to the Moon by the end of the decade and eventually to build a base on the lunar surface.
Mission commander and veteran space pilot Zhang Lu is accompanied by 32-year-old flight engineer Wu Fei, China's youngest astronaut to undertake a space mission, and payload specialist Zhang Hongzhang, 39.
The three astronauts waved goodbye to colleagues and family members at the remote launch base in the Gobi Desert as a band played a patriotic song.
Zhang Lu told reporters on Thursday he was confident his team would "report back to our motherland and its people with complete success".
Space first-timer Wu told a news conference Thursday that he felt "incomparably lucky".
Four mice -- two male and two female -- join them as the subjects of China's first in-orbit experiments on rodents.
- 'Space dream' -
Beijing's space programme is the third to put humans in orbit, after the United States and the former Soviet Union.
China has ramped up plans to achieve its "space dream" under President Xi Jinping, successfully landing its Chang'e-4 probe on the far side of the Moon in 2019, the first spacecraft to do so.
It then landed a small robot on Mars in 2021.
On Thursday, the China Manned Space Agency (CMSA) outlined a series of "crucial upcoming tests" it was undertaking in preparation for its 2030 Moon goal.
In addition to advancing scientific research, the Shenzhou-21 crew is expected to go on spacewalks and install anti-debris shields on Tiangong's exterior.
The astronauts are also expected to conduct "popular science education", the CMSA said, as Beijing searches for future space talent both domestically and internationally.
China has been excluded from the International Space Station since 2011, when the United States banned NASA from collaborating with Beijing.
It has since sought to bring other countries into its space programme and signed a deal with long-time ally Pakistan in February to recruit the first foreign "taikonauts".
Pakistani astronauts
Two Pakistani astronauts will undergo training alongside Chinese astronauts, and one of them will be selected to participate in a short-duration spaceflight mission as a payload specialist, the China Manned Space Agency announced.
The selection process for Pakistani astronauts has officially commenced following a cooperation agreement between China and Pakistan signed in February this year, said Zhang Jingbo, spokesperson for the agency.
Similar to the selection process for Chinese astronauts, this process is divided into three stages: preliminary selection, second round of selection and final selection. The preliminary selection is currently being conducted in Pakistan, while the second round and final selections will take place in China.
Preparations for the second round of selection are already underway, including developing training programs, preparing teaching materials and equipment, and ensuring logistical support during the training period, Zhang said.
Following the final selection, two Pakistani astronauts will undergo training alongside Chinese astronauts as planned. One Pakistani astronaut will be chosen to join a short-duration space mission as a payload specialist and conduct scientific experiments for Pakistan, as well as perform routine crew duties during the flight.
Since its inception, China’s manned space programme has consistently adhered to the principles of peaceful utilization, equality, mutual benefit and shared development, Zhang noted.
China actively recruits foreign astronauts to participate in its space station missions, promotes international cooperation and exchange in its manned space programme, advances space technology development, and works to benefit all humankind, he said.
“We welcome our global counterparts to join the flight missions of the Chinese space station,” Zhang added.–Agencies