The Shenzhou-20 crew has carried out its first experiment on planarian regeneration aboard China's space station.
Planarians, flatworms with an evolutionary history spanning over 520 million years, are one of the widely used experimental animal models in biological research. These organisms demonstrate an exceptional capacity for tissue repair: when bisected, planarians can regenerate lost muscles, skin, intestines, and even an entire brain from each segment -- a process that can be repeated indefinitely.
Researchers aim to investigate how the space environment affects the regenerative processes and physiological behavior of planarians. They will also explore the molecular mechanisms behind space-induced effects on planarian regeneration, thereby advancing scientists' understanding of regenerative biology.
Inside the Wentian laboratory module, the Shenzhou-20 crew observed samples in the biotechnology experiment cabinet and used the scientific glovebox to collect solid culture samples. The collected data and samples will assist researchers on Earth in studying the microbial mechanisms affecting cell tissue culture modules.
This initiative follows the successful inclusion of zebra fish and fruit flies in science experiments conducted aboard China's space station.
The Shenzhou-20 crew will carry out 59 additional space science experiments and technology tests in fields such as space life science, microgravity physics, and new space technologies, with potential breakthroughs in cultivation of vascularized brain organoid chips, soft matter non-equilibrium dynamics, and high-temperature superconducting material preparation.
First experiment on planarian regeneration conducted at China's space station
First experiment on planarian regeneration conducted at China's space station
First experiment on planarian regeneration conducted at China's space station
The 12th National Games for Persons with Disabilities and the Ninth Special Olympic Games will conclude on Monday, with a full-dress rehearsal for the closing ceremony held Saturday night at Shenzhen Sports Center.
Lasting approximately 45 minutes, the rehearsal seamlessly integrated artistic performances with core ceremonial elements, including the entrance of sports delegations, flag reception, flag raising, and the singing of national anthem.
The ceremony aims to highlight themes of inclusion and unity, underlining the spirit of perseverance, solidarity, and determination. Messages of harmony between disabled and non-disabled individuals, shared values across the Greater Bay Area, and collective progress were central to the evening's presentation.
A total of 600 performers are participating in the closing ceremony, including about 130 persons with disabilities. Organizers worked to ensure a supportive environment by pairing each visually impaired performer with a non-disabled guide to assist during rehearsals and performances.
Behind the scenes, thoughtful design turns inclusiveness into action. Though visitors will see a simple, elegant stage, hidden modifications make it fully accessible. Traditional stairs have been replaced with ramps on both sides of the stage to accommodate wheelchair users and all performers, and anti-slip carpets have been laid throughout to ensure safety, especially for performers with mobility challenges.
Technical teams are also fine-tuning every detail, including stage visuals and lighting effects.
A total of 7,824 athletes from 34 delegations registered for this year's Games, held for the first time jointly across Guangdong, Hong Kong, and Macao in the Greater Bay Area. The competition includes 1,876 events in 46 sports, with six winter sports already concluded. Highlights also include 131 events in 11 mass-participation sports and 599 events in nine Special Olympics sports.
Under the slogan "Passionate National Games, Vibrant Greater Bay Area," the Games are also being used to promote innovation in assistive technologies. A range of advanced products will be put into use during competition, helping move technologies from laboratories into real-world testing and market application.
Full-dress rehearsal for National Para Games' closing ceremony held in Shenzhen
