Infrared-running gravity hints a gravity-based path to galaxy rotation without dark matter

A Space.com article reports a new theory by Naman Kumar proposing infrared-running gravity, a scale-dependent modification of gravity that could explain galaxy rotation curves without invoking dark matter while remaining compatible with early-universe constraints; however, the approach is not yet a full replacement for dark matter in cosmology, and further work is needed to compare its predictions with gravitational lensing and galaxy-cluster observations.