Miranda is the innermost of Uranus’s five major moons and the smallest. Despite its size — barely 472 km across — it has one of the most bizarre surfaces in the Solar System. Three large oval “coronae” (Arden, Elsinore, Inverness), each ~200-300 km across, disrupt a heavily cratered terrain. Verona Rupes, a cliff with a ~20 km vertical drop, may be the tallest cliff anywhere known. Miranda’s appearance led to speculation that it had been shattered by an impact and then re-accreted; more recent modeling favors partial differentiation driven by ancient tidal heating.