This summer, the New Horizons probe flew past Pluto at 14km/second, but in the meantime managed to beam pack to Earth some amazing scientific data, but also high-res photos. This includes this amazing shot showcasing the transition from mountains to plains on the dwarf-planet. On the left is al-Idrisi Montes, mountainous highlands thought composed primarily of blocks of solid nitrogen. On the right, what we see are ice plains textured with ice pits and segmented. The whole picture shows an area 30km across.
It comes down to the inefficient engines they use.Read more