China's Shenzhou-21 astronauts have spent over three months in orbit, carrying out a series of tasks such as scientific experiments, space station upkeep, equipment maintenance, and health management. They collected blood samples for space medicine research, conducted microgravity physical science experiments, and monitored the cabin's environment. The crew also completed their first extravehicular activities on December 9, after the spacecraft's launch on October 31, 2025.