China's Shenzhou-19 crew conducted three spacewalks and six in-and-out payload transfer tasks during their stay at the China Space Station. They set a world record for the longest single spacewalk, which lasted nine hours, the China Manned Space Agency (CMSA) announced on Wednesday.

The three members of the crew, Cai Xuzhe, Song Lingdong and Wang Haoze, have been in orbit for 175 days, with all operations progressing smoothly and the three astronauts in good condition, according to the CMSA.

Cai has now completed five spacewalks, making him the Chinese astronaut who has conducted the most extravehicular activities. Song became the first Chinese astronaut born in the 1990s to perform a spacewalk, while Wang became the first female aerospace flight engineer to enter the space station.

Notably, during a previous cargo installation task, the payload adapter became unexpectedly stuck. The Shenzhou-19 crew successfully resolved the issue during their first spacewalk, playing a key role in ensuring the smooth progress of subsequent experiments.