Shenzhou-23 Crew Advances Scientific Research And Health Tasks In Orbit

The three astronauts aboard China’s Shenzhou-23 spacecraft have completed a busy week of scientific research, operational training and health management activities as they continue their mission aboard the country’s space station.

Crew members Zhu Yangzhu, Zhang Zhiyuan and Li Jiaying, also known as Lai Ka-ying in Cantonese, carried out a series of experiments designed to deepen understanding of how long-duration spaceflight affects the human body and behaviour.

During the week, the astronauts used a space Raman spectrometer to investigate gut microbiota and nutritional metabolism. The instrument identifies molecular compositions by directing a laser at a sample and analysing the resulting signals. By examining metabolic components in urine samples, the crew explored changes in gut microbiota and assessed how these changes influence nutritional metabolism during extended periods in space.

Behavioural Studies In Microgravity

The astronauts also conducted behavioural experiments focused on visual motion processing and intuitive physics in a microgravity environment. These studies aim to improve understanding of how gravity influences the processing of visual motion information.

In addition, the research examines the effects of prolonged spaceflight on intuitive physical representation and seeks to identify mechanisms that support recovery after exposure to microgravity. The findings could contribute to future human spaceflight missions and improve knowledge of cognitive adaptation in space.

The crew further participated in emotional recognition and evaluation research. Alongside this work, they completed assessments of emergency decision-making abilities. These investigations are intended to reveal patterns in emotional state changes and evaluate how astronauts respond to potential emergencies while living and working in orbit.

Experimental Equipment And Sample Processing

The crew maintained a demanding laboratory schedule throughout the week. They replaced experimental samples in the fluid experiment cabinet and completed the disassembly and reassembly of modules within a two-phase experiment cabinet.

Moreover, the astronauts installed an infrared thermal imager and processed downlink samples from studies involving typical aquatic plant and animal symbiosis, as well as in-orbit processing technologies. These activities support ongoing scientific investigations and ensure the continued operation of research equipment aboard the station.

Medical Training And Station Maintenance

The astronauts also completed their first in-orbit medical rescue training session since arriving at the space station in late May. The exercise helped them become more familiar with rescue procedures and force application techniques under microgravity conditions.

Meanwhile, the crew carried out several maintenance tasks across the station. They measured airflow speed, temperature and air cleanliness inside the cabin. They also collected microbial samples, inspected and maintained regenerative life support system equipment, checked low-temperature storage devices and replaced the soft door in the sleeping area of the core module.

Health Monitoring And Physical Conditioning

Health management remained a key priority throughout the week. The astronauts conducted comprehensive eye examinations, including vision assessments, eye pressure measurements and fundus tests.

Furthermore, they used a flywheel-based device designed to counter bone loss through mechanical stimulation. Alongside these measures, the crew maintained their regular exercise programme to support physical fitness and overall well-being during their extended stay in orbit.

With inputs from Reuters