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News Release Archive:

News Release 360 of 951

June 22, 2006 08:00 PM (EDT)

News Release Number: STScI-2006-29

Pluto's Two Small Moons Officially Named Nix and Hydra

A News Nugget Release

June 22, 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.

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Credit: NASA, ESA, H. Weaver (JHU/APL), A. Stern (SwRI), and the HST Pluto Companion Search Team