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700光年外恒星突然变暗表现怪异，很可能即将爆炸！
source link: https://tech.sina.com.cn/d/s/2020-01-21/doc-iihnzahk5492070.shtml
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新浪科技讯北京时间1月21日消息，据国外媒体报道，天文学家最新观测显示，参宿四（Betelgeuse）这颗年轻、明亮恒星近期表现有些怪异，正在突然变暗，该迹象很可能是因为它即将爆炸，另一种可能是这颗红巨星将演变进入一个新阶段。自2018年1
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