'Capturing' Nix and Hydra

Explanation: Pluto's moon Nix (left), shown here in enhanced color as imaged by the New Horizons Ralph instrument, has a reddish spot that has attracted the interest of mission scientists. Pluto's small, irregularly shaped moon Hydra (right) is revealed in this black and white image taken from New Horizons' LORRI instrument on July 14, 2015 from a distance of about 143,000 miles (231,000 kilometers).


Image credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute.