In a paper published in the Journal of Cosmology and Astroparticle Physics, scientists examined the theoretical and observational cases for a ‘cosmic glitch’ in Universe’s gravity. Wen et al. investigate a model that modifies general relativity on cosmological scales, specifically by having a ‘glitch’ in the gravitational constant between the cosmological (super-horizon) and Newtonian (sub-horizon) regimes. Image credit: M. Weiss / Harvard-Smithsonian...