3min chapter

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Little Black Holes Everywhere

Radiolab

CHAPTER

The Mystery of Dark Matter

If black holes actually can't totally disappear, but instead get locked at that last teeny, tiny, invisible size. That sounds exactly like dark matter. And Matt Kaplan says if that's the case, then there must be an unthinkably large number of them out there. He worked on a team whose recent paper taught us what the impact crater left behind by a primordial black hole would look like.

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