Shenzhou astronauts carry out second spacewalk

Cai and Chen are tasked with installing an extended pump set during the spacewalk that will last several hours, mission planners said.

Chen and Liu conducted the Shenzhou XIV mission's first spacewalk on Sept 1, working six hours outside the Tiangong station. Cai stayed inside the station to provide technical assistance.

That was the first time for astronauts to use the Wentian space lab's airlock cabin to carry out a spacewalk.

Crew members of previous flights used the airlock cabin on the Tianhe core module to support spacewalks.