Collapsing Sheets of Spacetime Could Explain Dark Matter and Why the Universe Hums'
Briefly

Tentative claims suggest gravitational waves may have been detected, potentially originating from domain walls that now manifest as black holes, possibly comprising dark matter.
Theoretical study shows remaining domain walls from big bang could now appear as small black holes. This concept addresses gravitational wave observations and suggests an abundance of such entities.
Read at www.scientificamerican.com
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