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银河系结构或源自与“香肠”星系相撞
source link: https://news.cnblogs.com/n/601013/
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科技日报北京7月5日电(记者刘霞)据英国剑桥大学官网4日消息,一个由该校天文学家领导的国际团队称,他们发现了银河系和被称为“香肠(Sausage)”的更小星系间古老而剧烈的迎面碰撞,这是银河系早期历史上的一个决定性事件,重塑了银河系的结构,形成了其...
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