New simulations show that the fabric of space-time can become turbulent, churning and swirling exactly like a chaotic liquid.
April 1, 2026
Original Paper
Towards Gravitational Wave Turbulence within the Hadad-Zakharov metric
arXiv · 2603.29699
The Takeaway
We usually think of space-time as a rigid, invisible grid, but this study shows that gravitational waves can interact to create a 'dual cascade' of energy. This means the universe itself can 'slosh' and become turbulent, following the same laws of physics that govern a stormy sea or a whirlpool.
From the abstract
The theory of gravitational wave turbulence describes the long-term statistical behaviour of a set of weakly nonlinear interacting waves. In this paper, we aim to study aspects of gravitational turbulence within the framework of general relativity using the Hadad-Zakharov (HZ) metric. The latter is parameterised by four functions (the coefficients of a diagonal metric) that must satisfy seven non-trivial Einstein equations, six of which are independent. The issue of their mutual compatibility is