Shenzhou astronauts complete second spacewalk

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.