A messy soup of proteins just organized itself into a "crystal" that literally beats in time like a heart.
arXiv · March 13, 2026 · 2603.12079
Why it matters
Usually, 'active fluids' like the ones inside our cells are turbulent and messy, but researchers discovered that these chaotic flows can suddenly snap into a perfectly ordered lattice. This 'spatiotemporal crystal' breaks the rules of both space and time, self-organizing into a ticking, rhythmic structure from total disorder.
From the abstract
The emergence of long-range spatiotemporal order from intrinsic chaos is a central challenge in far-from-equilibrium physics. In active fluids, such as cytoskeletal networks driving cellular motion, self-generated flows typically produce "active turbulence", lacking translational symmetry. Here we show that a chaotic active nematic can self-organize into a spatiotemporal crystal, forming a regular lattice of density, orientation, and vorticity that breaks both spatial and temporal translational