The Shenzhou XXII cargo mission will dock with Tiangong after launch. Originally scheduled for crew transfer in April 2026, it has now been repurposed as a standby crew ship, following recent developments in the Chinese space program.
On Friday, the Shenzhou XX astronauts returned to Earth using the Shenzhou XXI spacecraft, which was held in reserve. The Shenzhou XXII spacecraft is now designated for emergency readiness. Engineers detected minor cracks on the viewport window of the Shenzhou XX return capsule, likely caused by impacts from space debris.
The returning crew spent 204 days in orbit, the longest duration for any Chinese mission to date. Currently, the astronauts are in medical quarantine for health checks, and they will be available for public comment after this period.
Chinese mission planners maintain backup rockets and spacecraft to address emergencies. Protocols allow for rapid launch preparations to provide immediate in-orbit support when required.
On this flight, four mice transported to Tiangong on Nov 1 returned to Earth with the astronauts. The animals were delivered to the Chinese Academy of Sciences for post-mission evaluations. Researchers reported the mice adapted quickly to terrestrial gravity and resumed normal feeding.
Scientists will study the rodents' stress responses and physiological adaptation to space conditions. These investigations aim to improve understanding of how microgravity affects living systems.
Additional samples - including zebrafish, hornwort, streptomyces, planarians, and brain organoids - were brought down for analysis. Science teams have begun detailed assessments of these biological and combustion experiment specimens.
Related Links
China Manned Space Agency
The Chinese Space Program - News, Policy and Technology
China News from SinoDaily.com
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