Self-propelled particles subjected to chirality disorder constantly rearranging into an active foam with varying orientation (different colors).

From the article:

Susceptibility of Orientationally Ordered Active Matter to Chirality Disorder
Bruno Ventejou, Hugues Chaté, Raul Montagne, and Xia-qing Shi
Phys. Rev. Lett. 127, 238001 (2021)

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