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
With the Pinglu Canal in the Guangxi Zhuang Autonomous Region officially open to shipping, Yangpu Port in south China's Hainan Province will fully leverage the policy and geographical advantages of the Hainan Free Trade Port (FTP) to accelerate its development into an international shipping hub, further connecting the New International Land-Sea Trade Corridor with global markets.
The canal stretches along the New International Land-Sea Trade Corridor, a strategic trade route connecting China's inland regions with ASEAN and other global markets. It is the first river-to-sea canal project planned and coordinated at the national level since the founding of the People's Republic of China in 1949.
Located in the northwest of the island province, Yangpu Port is the deep-water port closest to the main international shipping routes in the Beibu Gulf, and is also one of the maritime outlets of the New International Land-Sea Trade Corridor.
The opening of the Pinglu Canal to navigation has opened up a new sea-river intermodal transport corridor for goods entering and leaving the southwestern region, and has also brought new opportunities to some enterprises.
At a petrochemical enterprise in Danzhou City, robotic arms are bagging and packaging chemical products on a conveyor belt, and these goods will be shipped to southwest China's Guizhou Province and other places.
Most of this enterprise's customers in the Chinese mainland are concentrated in the southwestern Chinese provinces of Yunnan, Sichuan and Guizhou. At present, the enterprise is adjusting its future shipping plans in response to the logistics changes brought by the opening of the Pinglu Canal to navigation.
"We plan to shift about 70 percent of our goods to this new sea-river intermodal transport corridor, and overall logistics costs are expected to drop by 30 to 40 percent. Next year we also plan to build another plant in Hainan, which will allow us to take advantage of the free trade port's policies, import raw materials from places like Indonesia, and after processing, sell the products to the southwestern region or re-export them. This is expected to add about 200,000 tons of production capacity," said Wei Jianqiang, head of Hainan Oxiranchem Co., Ltd.
Behind the enterprises' expansion of production and the busier flow of goods, there is also the upgraded service support made possible by the opening of the Pinglu Canal to navigation. In this regard, the relevant authorities have also made full preparations.
"After the Pinglu Canal opens to navigation, we will strengthen safeguard measures in areas such as facilitating the entry and exit of container ships on fixed routes, credit-based regulation, and cross-regional coordination," said Jiang Yufeng, head of the Xiaochantan Maritime Patrol and Law Enforcement Brigade, Yangpu Maritime Safety Administration.
Pinglu Canal underscores growing role of Yangpu Port as int'l shipping hub
