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
Hydra (film) ship. Gwen wants to use the radio for calling SOS but the microphone is damaged. Mr. Camden blindsides her and blackmails Tim. The Hydra kills Camden from behind, then devours Dixie. Tim grabs the magic sword again and this time, he really kills the monster. Tim and Gwen reach Sardinia and use the $10,000,000. Hydra (film) Hydra (also known as Hydra: The Lost Island) is a 2009 low-budget monster movie by Andrew Prendergast and Peter Sullivan, which blends elements of horror, thriller and classical mythology. It was made for cable TV and subsequently internationally distributed on DVD. Young archaeologist Dr.