Cosmic Fluid Dynamics: Space May Be a Viscous Medium
A preprint from IIT Jodhpur proposes treating outer space as a slow-moving viscous fluid with “spatial phonons” that could subtly push back on dark energy. The idea, meant to reconcile discrepancies between observations and the standard ΛCDM model (notably from DESI/DESI surveys), keeps dark energy as a cosmological constant while adding a mechanism for nonuniform cosmic expansion. It is not yet peer-reviewed and requires more data to test its viability.
