... Titled New Horizons, the painting also depicts Pluto's companion, Charon , as a darkened, ghostly apparition with a luminous crescent against a starry background. ... Craters suggest bombardment by Kuiper Belt objects, a newly understood population of outer solar system bodies likely related to the Pluto-Charon system . NASA is now considering a future robotic reconnaissance mission to Pluto-Charon and the Kuiper Belt which could reach the distant worlds late in the next decade. ... Pluto s P4 . ...