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

一 |     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.。    8月1日，梅州金燕大道万达广场44070004福彩销售站点传出中奖喜讯，一位彩民在该站点购彩，幸运刮出“好运百万”刮刮乐即开票一等奖，中奖奖金100万元。　　8月3日上午，幸运中奖者林女士（化名）来到梅州市福彩中心办理兑奖手续。

二 | 林女士开心地介绍了自己的中奖经过，8月1日晚上，她到万达广场购物，经过44070004福彩站点，抱着随手公益的心态，她买了一张面值10元的“好运百万”刮刮乐即开票，没想到惊喜刮出100万元大奖。
“好运百万”是福彩刮刮乐即开票的经典游戏，票面以喜庆的红金两色为主色调，玩法简单、趣味十足，一直深受广大彩民喜爱。
中出“好运百万”大奖的44070004销售站点位于梅州万达广场1楼，该店也是公益驿站，为市民提供多项便民服务。

三 | 站点负责人表示，站点中出大奖是喜事，为幸运中奖的彩民感到开心，以后会继续秉持诚信、规范、暖心的服务理念，用心服务好每一位购彩者。
一张福利彩票，一份温暖善意。中国福利彩票由国家特许发行，以筹集公益资金为目的，始终践行“扶老、助残、救孤、济困”的发行宗旨，倡导“多人少买、寓募于乐、量力而行、理性购彩”的购彩理念。
感谢每一位购彩者，您购买的每一张福利彩票都是对社会公益事业的爱心助力。感谢购彩者的暖心善举，期待大家在支持福彩公益事业的同时收获幸运惊喜。
中国福利彩票，为社会造福，为生活添彩。

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