【新朋友】点击标题下面蓝字【可可英语】加关注【老朋友】点击手机右上角图标【转发分享】内容中英文本A half century ago astronomers designed a map that would point to Earth from anywhere in the galaxy. Then they sent it into space, reasoning that any aliens smart enough to intercept a spacecraft could decode the map and uncover its origin. Many movies and TV shows have used variations on this theme as a plot point, but we didn't borrow it from science fiction. It's reality.半个世纪前,天文学家设计了一幅可以从银河系任何地方指向地球的地图。然后他们把这幅地图发送至太空,推论任何聪明到能拦截宇宙飞船的外星人,都有能力破解这幅地图并找出它来自哪里。许多电影和电视节目都使用了这个主题的变体作为情节,但我们没有从科幻小说中借
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