NASA’s New Horizons spacecraft has captured the sharpest pictures yet of Pluto’s small satellites Nix and Hydra. Nix, shown here in enhanced color as imaged by the Ralph instrument aboard New Horizons, has a reddish spot. The picture was snapped at a distance of 102,000 miles (165,000 km). It shows features as small as 2 miles (3 km) across. The data were obtained on the morning of July 14 and received on the ground on July 18. Image credit: NASA...
