There's a Real chance You Could Be Hit By a Black Hole: But Not to Worry, You Won't Feel It

Live Science: Minuscule black holes that can hollow out entire planets could be tunneling through objects on Earth, according to a wild new theoretical study. These hypothetical space-time missiles may be leaving microscopic traces of their passage in everyday objects and even our own bodies, the new research suggests.

Formed in the fiery afterglow of the Big Bang, primordial black holes (PBHs) are one of the candidates for dark matter — the mysterious, invisible substance that makes up 85% of the universe's matter. As heavy as mountains these hypothetical entities are barely larger than hydrogen atoms. 

The existence of promordial black holes has yet to be demonstrated. However, as reported in the December issue of the journal Physics of the Dark Universe, physicists are thinking about where to look for proof.

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