Three of the largest objects in the Kuiper Belt have moons. These images, acquired using the W. M. Keck Observatory's laser guide star adaptive-optics system, shows Pluto, 2005 FY₉ ("Easterbunny"), 2003 EL₆₁ ("Santa"), and 2003 UB₃₁₃ the objects at the same scale. Tick marks are spaced at 1" intervals.