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Last updated on April 24, 2014 at 21:24 EDT
 Plutos Two Small Moons Officially Named Nix and Hydra
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Pluto's Two Small Moons Officially Named Nix and Hydra

June 26, 2006
A pair of small moons that NASA's Hubble Space Telescope discovered orbiting Pluto now have official names: Nix and Hydra. Photographed by Hubble in 2005, Nix and Hydra are roughly 5,000 times fainter than Pluto and are about two to three times farther from Pluto than its large moon, Charon, which was discovered in 1978.