Researchers have proposed a new model that suggests dark matter originated during the infinitesimally short span before the Big Bang.

Energy transition Dark matter may have been created after the Big Bang, something that could soon be tested by gravitational wave detectors. (Courtesy: Shutterstock/Tomertu) New constraints on a theory that says dark matter was created just after the Big Bang  – rather than at the Big Bang – have been determined by Richard Casey and  Cosmin Ilie at Colgate University in the US.

As physicists continue their struggle to find and explain the origin of dark matter, the approximately 80% of the matter in the universe that we can't see and so far haven't been able to detect, researchers have now proposed a model where it is produced before the Big Bang.

We don't know what dark matter is or where it came from, and if it is made of some kind of weakly-interacting form of matter, we still can't directly detect a single particle of it. According to a theoretical study by two researchers from Colgate University in the US,

Assistant Professor of Physics and Astronomy Cosmin Ilie and Richard Casey ’24 have explored an idea put forth by two scientists at the University of Texas at Austin, Katherine Freese and Martin Winkler, suggesting that dark matter may have originated from a separate “Dark Big Bang,” occurring shortly after the birth of the universe.