New paper out on B. subtilis swarming dynamics! The paper, published in Frontiers of Soft Matter, is a collaboration with Iago and Munehiro and builds on our previous paper on eLife. Here we dwell into the characterisation of the transition from a monolayer to a multilayer swarm. Turns out that this looks like a first order phase transition and can take either a “nucleation and growth” route or a more sudden “spinodal” decomposition route…