Emergent gravity is a bold idea. It claims that the force of gravity is a mere illusion, more akin to friction or heat—a property that emerges from some deeper physical interaction. This emergent ...

It is one of the most exquisite views we have ever had of the Earth. This colourful new map traces the subtle but all pervasive influence the pull of gravity has across the globe. Known as a geoid, it ...

Claudia de Rham showed how theories of “massive gravity” could potentially get rid of the need for dark energy. Ever since Albert Einstein’s general theory of relativity recast gravity as curves in ...