A Micron-Scale Dark Dimension: Dark Gravitons Linking Dark Matter, Dark Energy, and Gravity’s Apparent Weakness

To the point

Three scientists propose that a hidden micron-sized extra dimension hosts a tower of dark gravitons that act as dark matter to bind galaxies, gravity appears weak because it leaks into this large dimension, and these dark gravitons interact so weakly that they might subtly affect galaxy formation and clustering with possible signals in surveys like the Kilo-Degree Survey and Euclid and in laboratory gravity tests, though some physicists remain skeptical and the idea does not solve why the cosmological constant is so small.