China’s Shenzhou-21 astronauts have steadily carried out in-orbit experiments

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. The three crew have spent over three months in orbit, and are all in good condition.

In the field of space medicine, the astronauts have been continuing work on a pharmacokinetics research project. By collecting saliva samples, which will be sent back to the Earth, they aim to support researchers in studying how medications behave in microgravity. The resulting data will help improve in-orbit drug use protocols for future missions.