Physicist Proposes Dark Matter Is Made of Black Holes That Survived Dead Universes

"The universe may not have begun once, but may have rebounded. And the dark structures shaping galaxies today could be relics from a time before the Big Bang."

"In our work, we found that things larger than 90 metres could have survived the transition from collapse to expansion. These relics can include black holes, gravitational waves and density fluctuations."

The concept of dark matter may be explained by relic black holes that survived the collapse of previous universes. This theory is based on the 'Big Bounce,' which posits that the universe undergoes endless cycles of expansion and contraction. Primordial black holes, formed shortly after the Big Bang, are considered potential candidates for dark matter. Some black holes larger than 90 meters could have persisted through cosmic transitions, leaving behind relics that carry information from earlier cosmic epochs, including gravitational waves and density fluctuations.

Read at Futurism