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26 天
天文学家推翻了以往关于银河形成的理论
利用盖亚太空望远镜(Gaia space ...
8 天
中国科学家发现银河系最古老星盘起源于135亿年前,命名“盘古”
IT之家 10 月 11 日消息,像银河系这样同时具有盘和晕的漩涡星系是先形成盘还是晕?这是理解星系如何起源和早期宇宙环境的关键问题。对于银河系,长期以来人们普遍认为银晕是银河系最古老的结构,而银盘则晚于银晕,于大约 100 亿前(宇宙 30 多亿岁 ...
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