JIUQUAN: China's only woman spaceflight engineer will be among a crew of three astronauts blasting off on a "dream" mission to the Tiangong space station this week, Beijing announced Tuesday.

The new Tiangong team will carry out experiments with an eye to the space programme's ambitious goal of placing astronauts on the Moon by 2030 and eventually constructing a lunar base.

The Shenzhou-19 mission is scheduled to take off with its trio of space explorers at 4:27am Wednesday from the Jiuquan Satellite Launch Centre in northwest China, the China Manned Space Agency (CMSA) said.

Among the crew is Wang Haoze, 34, who is China's only woman spaceflight engineer, according to the agency. She will become the third Chinese woman to take part in a crewed mission.

"Like everyone else, I dream of going to the space station to have a look," Wang told a media gathering Tuesday alongside her fellow crew members, lined up behind podiums and tall panes of glass to seal them off from the public.

"I want to meticulously complete each task and protect our home in space," she said.

"I also want to travel in deep space and wave at the stars."

Headed by Cai Xuzhe, the team will return to Earth in "late April or early May next year", CMSA Deputy Director Lin Xiqiang said at a separate press event confirming the launch.

Cai, a 48-year-old former air force pilot, brings experience from a previous stint aboard Tiangong as part of the Shenzhou-14 mission in 2022.

"Having been selected for the new crew, taking on a new role, facing new tasks and new challenges, I feel the honour of my mission with a great responsibility," said Cai.

The aerospace veteran added that the crew was now "fully prepared mentally, technically, physically and psychologically" for the mission ahead.

Completing the astronaut lineup is 34-year-old man Song Lingdong.

The crew currently aboard the Tiangong space station is scheduled to return to Earth on November 4 after completing handover procedures with the incoming astronauts, Lin said.