Shenzhou-21 Crew Advances Experiments, Health Monitoring | China Space Station
China's Shenzhou-21 astronauts have steadily carried out in-orbit experiments, health monitoring, and maintenance tasks aboard the Tiangong Space Station over the past week, according to the China Manned Space Agency (CMSA).
The crew consists of mission commander Zhang Lu and astronauts Wu Fei and Zhang Hongzhang. They have spent over four months in orbit, and are all in good condition.
In the field of space medicine, the astronauts completed several studies including research on trust and cooperation mechanisms, human-machine trust in spaceflight, and intuitive physical behavior in microgravity.
The crew also used a space Raman spectrometer to analyze metabolic components in urine samples. The data collected will help researchers further refine indicator systems and evaluation criteria for related metabolic markers.
In addition, the astronauts used electroencephalography (EEG) equipment to gather data for experiments on metacognitive monitoring and group brain cognition-emotion analysis and regulation, supporting ongoing research by scientists on the ground.
In the area of microgravity physical science, the crew followed scheduled procedures to carry out maintenance and experiment operations. These included replacing a sampling cover in the combustion science experiment rack, performing vacuum pumping and exhaust removal, and changing experimental samples in the fluid physics experiment rack.
For station management, the crew conducted routine inspections of the space station platform and completed environmental monitoring tasks, such as dew point testing, temperature measurement, and wind speed monitoring to ensure a safe and habitable environment in orbit.
The astronauts also carried out several medical examinations, including intraocular pressure and fundus checks, body mass measurements, and cardiopulmonary fitness tests during exercise. They additionally used a traditional Chinese medicine diagnostic device to collect health data, allowing ground teams to closely monitor the crew's physical condition while in orbit.
Shenzhou-21 Crew
Zhang Lu (张陆) - Commander & Pilot - 2nd spaceflight
Wu Fei (武飞) Flight Engineer - 1st spaceflight
Zhang Hong Zhang (张洪章) - Payload Specialist - 1st spaceflight
Video Credit: CCTV
Duration: 1 minute, 31 seconds
Release Date: March 9, 2026
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