Description
黑洞是广义相对论预言的一种天体，它的引力非常强大，使得视界内逃逸速度超过光速。不但掉入黑洞的物体逃不出，连物体上的光也逃不出，所谓视界就是光都不能跑出来的区域边界，我们是看不到黑洞内部的。因此从定义上可知黑洞就是逃逸速度大于光速的天体。所以答案就是黑洞的逃逸速度确实比光速还快。
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