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历史性时刻：NASA宣布旅行者2号飞船进入恒星际空间
source link: https://tech.sina.com.cn/d/s/2018-12-12/doc-ihqackaa4393795.shtml
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新浪科技讯北京时间12月12日消息，美国宇航局再次创造了历史：在太空飞行40多年之久之后，“旅行者2号”探测器成为历史上第二艘进入恒星际空间的人类飞船。这项消息的宣布是继6年前它的姊妹飞船“旅行者1号”穿越所谓日球层顶，进入恒星际空间之后，
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