How close is the nearest black hole to Earth?

All across the Universe, massive stars collapse and die.

The anatomy of a very massive star throughout its life, culminating in a Type II Supernova when the core runs out of nuclear fuel. The final stage of fusion is typically silicon-burning, producing iron and iron-like elements in the core for only a brief while before a supernova ensues. If the core of this star is massive enough, it will produce a black hole when the core collapses. (Credit: Nicolle Rager Fuller/NSF)

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Tags: Earth Hole