One of the clearest and most detailed images of the surface of comet 67P/Churyumov-Grasimenko. The image was taken by the OSIRIS Narrow Angle Science Camera on board the European Interstellar Space Probe (ESA) in 2014.
More precisely, it is a mosaic composed of real photographs. It describes a fragment of a region called Hathor, consisting of steep cliffs and craters of rocks and cosmic dust. Originally, the camera shot in grayscale through various filters, but here is a processed version, closer to the natural color (extremely dark and slightly brown) of the comet.