Landslide recorded on a comet for the first time
A landslide on a comet has been documented by astronomers for the first time from images that reveal the collapse of a 100 metre-long cliff. The observations of comet 67P made by ESA's Rosetta probe show a dusty avalanche leaving a patch of comet's icy interior exposed. Astronomers also linked the landslide to a cometary outburst releasing plumes of dust.