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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.。1月17日消息今天，微软确认Cortana和Windows Search正从Windows 1019h1更新任务栏中分离出来。它允许用户在操作系统中自由执行搜索，而无需与数字语音助手Cortana交互。今天早上，微软发布了最新的Windows1019h1预览版18317，并做了很多改动。虽然Cortana在很多情况下都很有用，但并不是每个人都喜欢它，所以微软在即将到来的Windows1019h1更新中将两者分开。对于那些想使用搜索的人来说，这是一个很好的改变，但是对于那些喜欢Cortana的人来说，这不是一个很好的改变。在1809年或更早的Windows10更新的10月份版本中，Cortana和Search被深度集成，用户使用数字助理来搜索文档等简单的内容。同样，Cortana与搜索的集成隐藏了数字助理的一些功能。在博客文章中，微软强调，将搜索与Corana分离将能够独立为每个人带来新的功能和改进的体验。微软仍在测试单独的Windows搜索和门户体验。Windows 1019h1更新尚未完成，可能会继续进行更多更改。

B | 搜索和corana在未来的版本中可以进一步改进或增强。

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Published on:08:10:49