Physicist Richard Lieu first theorized that gravity could exist without mass—now he’s got a new cosmological model that eschews the need for dark energy.

alternative theories of this universal acceleration have emerged in an attempt to circumvent this dark energy conundrum with names like Modified Newtonian Dynamics (or MOND) and “timescape ...

It all starts from a consideration: since Newtonian gravity is given by a very small perturbation of the temporal component of the Minkowski metric, from the gravitational superposition principle, ...

In the Newtonian limit, the field equation simplifies to γ ... The derived force law F=γma aligns with MOND phenomenology, bridging modified dynamics and geometric modulation. Furthermore, the model ...

Some astronomers have proposed a system of modified Newtonian dynamics as an alternative to cold dark matter, or even more exotic models including brane cosmology, which is related to string theory.

a theory which is consistent with fundamental relativistic principles and the phenomenology of Modified Newtonian Dynamics (MOND) theory. After setting the framework for lensing and cosmology, we ...

Abstract: We present a novel solver for an analogue to Poisson's equation in the framework of modified Newtonian dynamics (MOND). This equation is highly non-linear and hence standard codes based upon ...