This COSMO-SkyMed image, with 1-metre spatial resolution (Spotlight mode), shows the summit of Etna, the most famous and intensively studied volcano in the world. The mountain’s top, 3,340 metres above sea level, and the summit craters can be seen in the upper part of the picture. To the right is the Valle del Bove, a vast depression on the volcano’s Eastern flank, which has often acted as a n...