Hydra (moon) the Hydra, the nine-headed serpent that battled Heracles in Greek mythology. The nine heads of Hydra are a reference to Pluto's tenure as the ninth planet; its initial, "H", refers to the Hubble Telescope, which discovered Hydra and, together with Nix, to the "New Horizons" mission whose safe passage was the motivation for taking the Hubble images. Hydra orbits the barycenter of the system in the same plane as Charon and Nix, at a distance of about 65,000 km. Its eccentricity of 0.0059 is small, but significantly non-zero, and the largest of those of Pluto's small moons (slightly larger than
Battle of the Lerna Mills was recognized by some of Ibrahim's shooters that remembered him from Neokastro. He was taken to the French frigate of Admiral De Rigny to be treated afterwards. He estimated the Egyptian losses to 500-600 dead and more wounded. Greek casualties were 2 dead and 2 wounded. In his account of the battle he praises all the defenders who "fought that day like lions" in a desperate struggle to repel Ibrahim and save Nafplion. Battle of the Lerna Mills The Battle of the Lerna Mills was fought on June 24, 1825 in Lerna, Greece between the Egyptian forces of Ibrahim Pasha