December 2, 2021

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Dark matter could be made of black holes from the beginning of time

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Dark matter, the mysterious substance that exerts gravitational pull but emits no light, might really consist of vast concentrations of ancient black holes created at the very start of the universe, according to a new study.

That conclusion comes from an analysis of the gravitational waves, or ripples in space-time, produced by two distant collisions between black holes and neutron stars



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