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

A |     1月11日晚，“滨州发布”官微发布情况通报，内容如下：针对媒体报道惠民县部分土地被挖坑取土一事，滨州市已成立由自然资源规划、农业农村、水利等部门组成的联合调查组赶赴现场，依法依规进行全面调查核实。    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.。

B | 有关情况将及时公布。据此前央广网报道，有村民反映称，山东省滨州市惠民县大年陈镇有人大肆挖土，“破坏耕地”。作业现场大面积土地被挖（图据央广网）记者来到大年陈镇商家联村发现，大片土地被挖掘至两三米之深，部分坑内甚至渗出了地下水，现场估算被挖的土地面积超百亩。来源：央广网、滨州发布。

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Published on:17:40:08