Computational simulation of the fragmentation and reassembly that led to the formation of Hygiea and its family of asteroids, following an impact with a large object. While changes in the shape of Hygiea occur after the impact, the dwarf-planet candidate eventually acquires a round shape.More information and download options: http://www.eso.org/public/videos/eso1918c/Credit:P. Ševeček/Charles University