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

一 | 1月9日新闻小米今天推出了一款新产品：小米盒4SE套装版。这是一款人工智能机顶盒，内含小米高清数据线（1.5米），价格为189元。小米盒4SE套装版内置小米贴片墙系统，支持视频点播、频道切换、天气检查等语音控制。    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.。它可以在手机上发出语音指令。支持手机屏幕投影，可以将图片和视频投影到电视、WiFi和USB连接，接口支持AV、USB 2.0、HDMI。配置方面，小米盒4SE封装输出分辨率可达1080p，采用Cortex-A7四核处理器，GPU为Mali-400，1GB内存4 GB存储空间，支持802.11 b/g/n，2.4 GHz WiFi。

二 | 小米盒子的4SE包装于1月11日10点开始销售。价格是189元。这是一份米面卡的礼品，最高电话费为100元。

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Published on:15:30:08