tldr: they simulated the formation of galaxies with general relativity and an alternativ theory and found a property that differs between both simulations and s

tldr: they simulated the formation of galaxies with general relativity and an alternativ theory and found a property that differs between both simulations and should be measurable with the Square Kilometer Array radiotelescope. (a nice thing is that this is a general approach that could be used to quickly test and unvalidate alternativ models)