A Charles Sturt University (CSU) adjunct lecturer is shedding new light on dark matter, which makes up most of the Universe. Dark matter remains a mystery with no convincing theory ever having been put forward to explain its existence, according to Dr Allan Ernest from the CSU School of Computing and Mathematics. He says scientists struggle to explain dark matter and they need to use ideas that involve new, ‘made-up’ physics or as yet unknown, undiscovered particles. Dr Ernest says, “My theory uses well known physics and ordinary particles. When applied, ordinary matter can be made invisible by putting it into the right ‘state’, producing the dark matter halos of galaxies in the early universe. It’s a hypothesis that seems to be able to explain almost all of the observations of dark matter”. Dr Ernest along with Dr Matthew Collins will present the theory at the upcoming 18th International Conference on General Relativity and Gravitation in July.