Dean W, Armstrong writes "Pluto's two new satellites, previously identified as S/2005 P 2 and S/2005 P 1, received official names from the International Astronomical Union today. Nix and Hydra are named after the mother of Charon and the fierce nine-headed monster. The initials of the new names, N and H, call to mind the New Horizons spacecraft, on a fast trajectory to visit Pluto, just like Pluto's symbol calls to mind Percival Lowell."
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