Picture a spacecraft approaching an alien world for the first time, its cameras scanning the surface for a safe landing spot among a landscape of craters, ridges, and mysterious formations. Unlike terrestrial navigation where GPS signals and familiar landmarks guide our way, spacecraft venturing to distant worlds must become their own pathfinders, identifying and understanding features they have never encountered before. This fundamental challenge—teaching machines to see and comprehend the unseen—represents both the greatest obstacle and the most exciting frontier in space exploration.