New Horizons image of two of the dwarf planet Pluto's smaller moons, Nix (left) and Hydra (right). The colour-enhanced image of Nix shows a reddish ar

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New Horizons image of two of the dwarf planet Pluto's smaller moons, Nix (left) and Hydra (right). The colour-enhanced image of Nix shows a reddish area in its lower region, that may be a crater. Two craters are also visible on Hydra, along with a darker upper region that could point to a different surface composition. New Horizons has spent nine and a half years travelling the nearly five billion kilometres to Pluto. Nix image obtained by the Ralph instrument at a distance of 165,000 kilometres. Hydra image obtained by the Long Range Reconnaissance Imager (LORRI) at a distance of 231,000 kilometres. Both images obtained on 14th July 2015.

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Size: 3100px × 3002px
Photo credit: © NASA/JHUAPL/SWRI/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, 14, 2000s, 2010s, 2015, 21st, astronomical, astronomy, background, black, century, coloured, craters, exploration, false-coloured, geological, geology, horizons, hydra, imager, july, long, lorri, moon, moons, nix, planetary, pluto, plutonian, ralph, range, reconnaissance, science, solar, space, surface, system, topographical, topography