Analyzing avalanches on asteroid Vesta offers new method for understanding regolith processes

A study conducted at the Institut de Physique du Globe de Paris uses images from NASA's Dawn mission and a Bayesian inversion of the Hapke photometric model to analyze avalanches and ejecta deposits ...
PNAS

Curvature-induced stiffness and the spatial variation of wavelength in wrinkled sheets

The examples shown are for (A) unaxial compression of a floating sheet (e.g., from ref. 27), (B) a rectangular sheet that is clamped along two edges and stretched, and (C) the cylindrical setup ...