... Last Look at Plutos Charon Side . ... Credit Copyright: NASA , Johns Hopkins Univ./ ... As the robotic New Horizons barrels toward its closest approach to Pluto and its moons tomorrow, images already coming back show Pluto's surface to be curiouser and curiouser. The featured image , taken two days ago, shows the side of Pluto that always faces Pluto's largest moon Charon. ... Publications with keywords: Pluto . Publications with words: Pluto . ... Charon and the Small Moons of Pluto . ...