Pluto's Moons Nix and Hydra (IMAGE) University of Maryland Caption Pluto's moon Nix (left), shown here in enhanced color as imaged by the New Horizons Ralph instrument, and Pluto's moon Hydra (right) shown in this black and white image taken from New Horizons' LORRI instrument. Both images were taken on July 14, 2015. Credit NASA/JHUAPL/SWRI Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.