作者：安华 来源：原创 发布日期：08-22
A | 一场秋雨过后，新屯公园变得色彩斑斓。10月10日上午，记者在东洲区新屯公园内看到，美丽的“枫”景，吸引了市内外众多游客前来欣赏、拍照。 公园的“枫”景树林中，来自棚改新区虎西秧歌队的40余名队员，在领队汤克友的带领下，穿着色彩鲜艳的秧歌服扭起了东北大秧歌，让前来观赏枫叶的游客大饱眼福。 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.。 家住新抚区永安台街道南阳社区的吴先生，每年都会带着父母到新屯公园欣赏枫叶，他对记者说：“在家门口就能欣赏枫叶美景，父母特别高兴，也不觉得累！”吴先生边说边为父母拍照，两位老人乐得合不拢嘴。 今年国庆节前夕，东洲园林部门还在新屯公园花坛内种了大量的花卉，为市民和游客打造姹紫嫣红的视觉盛宴。 责任编辑：李丹。
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