This color image of Pluto taken by NASA's New Horizons spacecraft shows rounded and bizarrely textured mountains, informally named the Tartarus Dorsa, that rise up along Pluto's terminator and show intricate but puzzling patterns of blue-gray ridges and reddish material in between. This view, roughly 330 miles (530 kilometers) across, combines blue, red and infrared images taken by the Ralph/Multispectral Visual Imaging Camera (MVIC) on July 14, 2015.