A new theoretical study suggests dark matter may not exist, proposing instead that gravity behaves differently across vast cosmic distances. By modifying how gravity weakens over scale, the research explains galaxy rotation and lensing effects without unseen particles, raising questions about long-standing cosmological models and inviting a fresh look at gravity’s h…​A new theoretical study suggests dark matter may not exist, proposing instead that gravity behaves differently across vast cosmic distances. By modifying how gravity weakens over scale, the research explains galaxy rotation and lensing effects without unseen particles, raising questions about long-standing cosmological models and inviting a fresh look at gravity’s h…  ​ science