Chinese astronauts aboard the Shenzhou-21 mission have successfully completed a third spacewalk outside the Tiangong space station. The extravehicular activity focused on installing hardware designed to protect the orbital outpost from debris and conducting a detailed inspection of the station's exterior.
The crew's primary task involved outfitting the station with new protective components, a critical measure for long-term operations in an increasingly crowded orbital environment. This work is part of ongoing efforts to maintain and upgrade the capabilities of China's permanent space habitat.