Tiny black holes left over from the Big Bang may be prime dark matter suspects


When it comes to primordial black holes being dark matter suspects, their alibi may be falling apart. Tiny black holes, created seconds after the birth of the universe, may survive longer than expected, reigniting a suspicion that primordial black holes could account for dark matter, the universe’s most mysterious stuff.

Dark matter currently represents one of the most pressing problems in physics. That is because, despite making up an estimated 85% of the matter in the cosmos, dark matter remains effectively invisible to our eyes because it doesn’t interact with light.

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