An article published in the journal “Nature Geoscience” shows an analysis of the erosion processes that have generated deep fractures and faults in the nucleus of comet 67P/Churyumov-Gerasimenko. A team of researchers led by geologist Christophe Matonti of the Aix-Marseille University, France, examined images captured by ESA’s Rosetta space probe’s OSIRIS camera to perform a geological and morphological analysis identifying two fracture formation processes. According to the researchers, surface fractures are generated by temperature changes while the deeper fractures are generated by shear stress.