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Crewed Mission to Mars May Be Exposed to Unsafe Levels of Radiation, Study Warns_我的网站

A |     While scientists and science fiction authors alike have long dreamed of sending crewed missions to Mars, a new study suggests these plans may hit a snag – a big one.,The authors of a yet to be peer-reviewed study argue that the participants of such a mission to Mars would end up being exposed to radiation – namely, to “energetic charged particles from Galactic and Solar origin” – both while in transit and while on the planet itself, with the “thin spacecraft shield” and “rarefied Martian atmosphere” offering little in the way of protection.,The research team attempted to gauge the impact of a simulated 1,000-day mission to Mars on various organs of the human body, and concluded that astronauts may be exposed to radiation doses above one Sievert, which is over the safe limit set by most space agencies, New Scientist points out.,“We suggest mitigation strategies such as improved ways of shielding and dietary supplements, and make recommendations for the safety of astronauts in future crewed missions to Mars,” the team wrote in the abstract of their work available on the arXiv preprint server.,Ideas about how astronauts may be protected from radiation during a mission to Mars have already been proposed, such as the concept of a radiation shield comprised of a fungus found growing at the Chernobyl Nuclear Power Plant.,Last year, one architecture studio even unveiled a project for a self-sufficient and sustainable city that would be built on the red planet itself.。    

    Guests attend the 4th China-Italy Friendship Cities Cooperation Dialogue in Rome, Italy, April 16, 2026. (Xinhua/Li Jing)The China-proposed four global initiatives offer a new perspective on international governance and new opportunities for international cooperation amid geopolitical fragmentation and global instability, said an Italian business leader.
The initiatives represent China's efforts to provide coordinated responses to challenges that transcend national borders, Mario Boselli, president of the Italy-China Foundation, said in a recent interview with Xinhua.
They also represent a deepening of China's international vision following more than a decade of the Belt and Road Initiative, extending the focus from economic and infrastructure cooperation to development, security, dialogue among civilizations and global governance, he said.
He believes that the Global Development Initiative (GDI) and the Global Civilization Initiative (GCI) could offer opportunities to deepen cooperation between China and Europe, including Italy.
The GDI's focus on climate change, the UN Sustainable Development Goals, digitalization and technological innovation could create opportunities for cooperation in renewable energy, photovoltaics and energy storage, among others, said Boselli.
Italy and China can also strengthen cooperation among universities and research institutions in biotechnology, healthcare, artificial intelligence and advanced manufacturing, he added.
Noting that the GCI could promote cooperation in culture, heritage conservation, universities and youth exchanges, he said Italy, with its rich cultural heritage and the strong appeal of "Made in Italy" in China, is "one of the most natural European partners" for such initiatives.
Taken together, the four initiatives outline a vision of a multipolar world with greater participation by emerging economies and countries of the Global South, Boselli said.
With its tradition of dialogue with China and complementary economic strengths, Italy can play a bridging role between China and Europe, promoting practical cooperation in sustainable development, innovation, culture and global governance, he said.
China's initiatives may not provide an immediate solution to current international tensions, but can offer "a space for reflection and dialogue" to identify more inclusive, practical and long-term forms of cooperation, he added.
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