Stirling Newberry writes: "This image shows "P5," the place holder name for a 5th natural moon of Pluto, a tiny sliver that orbits ~29,000 miles from its primary in a circular orbit. Other than Charon, Hubble has been the means of finding all of the known moons of Pluto."
Ocean: A body of water occupying about two-thirds of a world made for man --
who has no gills.
-- Ambrose Bierce