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6 天
哈勃镜头下的仙女座星系
此外,STScI还指出,哈勃太空望远镜能够分辨出仙女座星系中超过2亿颗恒星。尽管这个数字非常庞大,但哈勃只能检测到比太阳更亮的恒星,而那些亮度低于检测极限的恒星无法被观察到。根据估算,仙女座星系的总恒星数量可能高达1万亿颗。
来自MSN
1 个月
韦伯望远镜证实宇宙加速膨胀,科学家:或与暗能量有关
美国国家航空暨太空总局(NASA)的韦伯太空望远镜(James Webb Space Telescope)搜集两年的数据已证实哈勃太空望远镜(Hubble Space Telescope)先前发现的 ...
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