While the scientific establishment has spent decades chasing invisible particles that never quite show up, a leading cosmologist has dropped a theory that turns everything on its head: dark matter isn’t some exotic new particle. It could be ancient black holes that survived from an entirely different universe.
This idea, laid out by Professor Enrique Gaztanaga of the University of Portsmouth, doesn’t just tackle one cosmic puzzle. It offers a clean fix for the Big Bang’s thorniest problems and lines up with fresh observations that have astronomers scrambling.
Gaztanaga argues the elusive substance that makes up roughly 27 per cent of the universe’s mass may actually be “relic” black holes formed in a previous collapsing phase of the cosmos.
“The idea is that dark matter may not be a new particle, but instead a population of black holes formed in a previous collapsing phase and bounce of the Universe,” Professor Gaztanaga says.
He rejects the standard singularity model where everything explodes from an infinitely dense point that breaks physics. Instead, he proposes a “bouncing” universe.
“The Big Bang corresponds to a bounce from a previous collapsing phase, rather than the absolute beginning of everything,” the Professor Gaztanaga further noted, adding “So it is the start of the expansion we observe, but not necessarily the beginning of time itself.”
In this picture, black holes from the collapsing galaxies of that earlier universe survived the bounce and now drift through our cosmos, exerting gravity without emitting light.