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A planet called HD 209458b, aka Osiris, orbits its star so closely that it is losing some of its atmosphere to the stellar wind. It may thus have a cometary tail Whaddya get when you cross a planet with a comet? Well, HD 209458b looks like a candidat
发表于:2019-01-02 / 阅读(77) / 评论(0)
60秒科学
60秒科学