June 21, 2006: Pluto's newly discovered moons are officially named Nix and Hydra

Today is the fifth anniversary of the naming of Pluto's second and third moons, Nix and Hydra. Originally discovered in mid-2005, they were designated S/2005 P1 and S/200d P2.





For more information about Pluto and its moons, check out these resources:

Pluto and Its Moons: Charon, Nix, and Hydra, NASA

Pluto, NOAA


Sonnet Ireland
Head of Federal Documents
Reference & Instruction Librarian
Subject Specialist: Legal Research, Political Science
Urban Studies, Engineering