How do bands emerge in highly porous rocks? A study based on energy minimization reveals how microscale heterogeneity and stress conditions drive the formation of complex deformation bands. Editors’ Highlights are summaries of recent papers by AGU’s journal editors. Source: Journal of Geophysical Research: Solid Earth Highly porous rocks, such as sandstones, often deform in a surprising way: instead of breaking apart or sliding, they de... [1837 chars]